I've played team sports at a decently high level, and for a long time at various levels. I can't conceive of giving a single game up regardless of the long view, as a player. I just cannot accept, to myself, doing it. I can lay traps tactically with a future payoff, but never give up a win.
So I can see if any of the players on those teams knew or surmised that they were tanking, they would be mind-effed by it. They are at a level of incredible competitiveness with other clubs and teammates. It is a self-inflicted crack of weakness that will wreck a culture.
when a club does it, it is an acknowledgement that the suits are in charge and that cancer will be hard to exorcise.
I think its more subtle than that. Play under ready kids while mature are in the lower grade. Train guys into the ground. Play them in roles that are not their best... so at geelong ... Hawkins at CHB or Brownless on ball or the play like they do after most byes.. Pretty soon other lose interest or form. McLean post Blues said something like that when they playing Fev out of position etc...yet at times its fair to do that. Geelong decided to move on to youth , and players like Arrnott and Mensch were then in struggle street not getting selected. Back a while I can remember Blight playing Brownless at CHB
Mess around with this stuff and you maybe like an actor that puts on weight for a role then finds it impossible to get back to where they were. Some of this stuff is almost intangible..and just as you have expressed ..for the sake of a couple of "picks" that may or may not become good players , the club is wiling to burn current players , playing current players into the ground to get and replace with these picks. I think its like juggling chainsaws ... perhaps you can do it for a very short period of time if the vast majority of the players are expected to still be part of the expected payoff. I think its a bit like Vitamin D and sunlight. Perhaps good in controlled doses and in a selective manor. Some of these clubs have been running around at a nudist retreat for days in the middle of summer...no hat , no sunscreen with redhair and fair skin.