Obviously "finance guy" would not only breed other "finance guys". However if the society consumes a majority of its productive members without insuring their reproduction, then they'll be selected against.
> Ah, this is pretty close to the same claim that "JayMan" made once when explaining to me how "gay people shouldn't exist, evolutionarily speaking" (because, of course, the gays would be outcompeted genetically by non-gays, and the identity wouldn't persist, right?)
That's such a weird position and obviously made by someone who doesn't understand evolution, so I'm not sure why you're bringing it here. It's the equivalent of saying that diseases/cancer/handicaps couldn't exist because "evolution". That is not what parent is talking about when underlying the risks of hindering reproduction for a whole class of citizens.