As of the moment I’m writing this article, the hot stove is still largely simmering. Outside of the Cubs’ trade for Aroldis Chapman—which, let’s be clear, is fraught and distressing and weird and better handled by a bunch of women online than by me—the trade deadline has approached with more anticipation than action. Yes, Melvin Upton went to the Jays, and yes, we’ve seen the annual Struggling Reliever Swap happen as Drew Storen and Joaquin Benoit switched places, but so far none of the prospects that we cherish—pace, Gleyber Torres—have moved away, and most of the stars remain in place. And so we’re set to receive approximately 8,000 articles debating the relative merits of trading or keeping prospects, about the nature of team development, and about whether veteran rentals are overrated or not.

Thankfully, this is not one of those articles, though I’m sure that if you find any of those debates that break new ground, they’ll be here at Baseball Prospectus. What I’m mostly interested in here is breaking down what makes prospects such valuable chips, why elite prospects and non-elite prospects alike are treated like poker chips at this time of year. As far as I can tell, there are three reasons for why prospects are treated as fungible value: 1) They are largely forgotten by the players’ union; 2) They are out of sight and out of mind for a major-league club; and 3) They have no real say in where or when they are employed. All of these factors combine to make minor leaguers what Karl Marx might call the surplus labor army of Major League Baseball, the collection of underpaid, talented workers that help maintain management’s profitability. So, yes, before you ask, this is a bit of a polemic.

The polemic quality of this article was probably predicted by the first point in my list above, the critique of the Players Association. I actually think that the MLBPA is one of, if not the best player unions in the big four sports, if only for two provisos that make baseball its own unique animal when it comes to player salaries: the lack of a salary cap and guaranteed contracts. That’s huge, and only the NHL really comes close to getting as good a deal for its players. But the dark secret of the MLBPA is that it is a veterans-first organization. Minor leaguers have long lobbied for better working conditions and more competitive salaries, and in response MLB has scuttled their class action lawsuits and defined them as seasonal interns as opposed to employees (largely in contradiction to their own press on MiLB websites, but that’s another issue). And the union has stayed silent. The union that has successfully defended 5-and-10 rights, that has embedded the DH so fully as to be all-but-eventually translated to the NL, and the union that has spit in the face of reports of reduced team profit has refused to speak up for its most roundly trampled members. And, so, minor leaguers are paid relatively nothing past their bonuses, and are set to make relatively nothing for their first six minor-league years.

And let’s be clear, major-league baseball teams can afford to pay their high priced vets and their minor leaguers fairly; I find claims to the contrary laughable. But minor leaguers are just not considered a priority for the union, and, fittingly perhaps, they are not considered a priority for the big-league club either. Recall the then-panned James Shields for Wil Myers and Jake Odorizzi trade: the veterans in the Royals clubhouse didn’t know Wil Myers from Adam, and they knew James Shields was an (at that time) ace. Maybe Eric Hosmer or some of the very young players who remembered him from the minors shed a tear for their friend leaving, but by and large, any major-league clubhouse will trade any number of minor leaguers for a shot at a pennant or a World Series. The larger issues of abuse aside, I expect that no one in the Cubs’ clubhouse is mourning even the deeply talented Gleyber Torres now that they have a stronger bullpen. And this is natural, of course—minor leaguers are developing while you’re playing a game a day and trying desperately to keep up with the grind of the season. You’re of course not going to relate easily with them.

This leads to the third point, that both the union’s disinterest in and the players’ distance from minor-leaguers plays to management in general, and ownership in particular. Because for the team itself, minor leaguers represent a unique win-win scenario: keep them, and you have cheap talent even if they just fill a spot on your bench or even if they fill a spot on your Triple-A team; trade them and you can add to a playoff run without really losing anything that will impact you until a year or more down the pike. And no minor-league player has the ability to say no to a trade; you won’t hear about Yoan Moncada or Julio Urias holding up trade talks because they need to be convinced to drop their no-trade clause. And even if a prospect is traded into a worse situation—a hitter traded to San Diego, or a pitcher traded to Colorado—they simply have to suck it up and try to succeed in a worse spot. Prospects are truly fungible, from a financial standpoint and from a personnel standpoint.

Ownership depends on this flexibility of labor to maintain its profit margins. While I still maintain that ownership could pay minor leaguers what they deserve and still pull a profit, it’s undeniable that whatever profit they would pull would be less than it is now. And as MLB is run to be profitable first and foremost—though the exceptions to that would make for an interesting article themselves—there’s no real incentive for ownership to make things more comfortable for minor leaguers. Even management has little incentive, as flexibility in the labor pool allows them to make moves to win now and win later. And even major-league players are conditioned into thinking of the minor-league group of players as other than them, non-veterans, or even as unwanted competition. And so minor leaguers remain as the remainder in the system that helps grease the wheels of MLB; spare a thought for them this trade deadline. As fans, we probably owe them that much at least.