that is the observable impact though. perhaps the bitcoin example is more straightforward - if only one person on the entire planet is willing to mine, they get the entire block rewards of the entire network.

this is an extreme example, but if you have a small number of corporations who don't give a shit about environmentalism and pursue maximum profit within whatever the law allows, you get to pretty much the same result. People doing good in one area only increases the alpha available for another player to exploit.

capitalism literally is the removal of morality from economic planning - by making it about personal interests and profit, you ensure that if one player has those uncomfortable morals, that other players will take care of the problem and ensure maximum profit is pursued regardless. It's an Autonomous System designed to eliminate morality from the field of economic activity.