That's just a theory. You can't prove that. If it arose as a species-wise capability, I actually think they would make the most of it. In other words, no need to provide for the poor, because who cares? They won't starve. No need for food stamps, or social security, or anything meant to preserve the welfare of the less fortunate.
It might not be pretty, but if it turns out bad, it wouldn't turn out bad in the way you say.
“…Judge not what a man has done, but judge what he could have done if he was a different bloke altogether. For art thou a leper? And a leper can changeth his spots…” --Rudy Wade, Misfits (Series 4, Episode 8)