I believe a startup of 50K coders also can create something of value for humanity and be commercially successful. It will just happen in another part of the world. It's up to the US where they want to draw a line.
Not sure where the rest of the world comes in this case.
So your assuming that being a good little Ragged-Trousered Philanthropist" is a good idea, and we should touch our caps to the software mill owner.
I'm not talking super-cheap places and software mills here. 50K is about the entry salary to get a EU blue card.
It is in the context of US salaries and rember a lot of folks on hn rightly complain how badly the EU/UK pays software professionals