> Big (aka successful) companies with a poor UX are likely focused on selling or some core feature set that is hard to create, and if they're big then it means they are or were making that tradeoff correctly.

All the comments disagreeing with this seem to be talking about "big" companies like Reddit. Think more IBM. OP's comment is very accurate.

And the 'core feature set' can be intangible features of the company, such as brand.