No, that's your opinion. And it's...hmm. Not really right. Not if a club is well-run. If money is all that matters, then sure. Whatever.
I probably shouldn't do this since it kind of seems certain that you still won't understand, but say for example, the club is being excellently run. Competitive at the highest level, with a good wage-structure in place. The 'very stupid' player who wants a chance at being involved will take those lower wages because they feel it's worth the risk in the long term. This is how, for example, PhDs teaching at Harvard often make less than their similarly-abled peers in the private sector: Do I take $170k/yr to teach at Harvard, or $280k/yr at this think tank, which is also quite well known in the field, but damn, it's not HARVARD.
(Did you know that within a high-level organization - AKA where prestige is involved - workers care far less what other people on their level make outside their organization and they care more about what others within the organization are making relative to them? This is an actual phenomenon. AKA at a well-run prestigious institution, your Brandon Williams' and Mason Greenwoods are perfectly fine with 20k/w as long as others around them at a similar level are, too. And one of the things this does is it builds camaraderie and keeps people pulling in the same direction. It's us against them. Us against the mercs.)
Anyways, sorry for what might seem like a non-sequitur, but at this stage I don't really think it's worth explaining much more than that. If you're able to see and discuss the issue fully - i.e. what to do with obvious exceptions such as recruiting outliers from the outside like Rooney, and who holds the leverage when the player is already at the club, incentivized items, 'maybe Welbeck on 20k/w was right for then but this is ten years later there's been inflation' etc - then we might be able to discuss; otherwise, sorry.