It has likely become not just unprofitable to focus on UX, but downright detrimental to the company’s bottom line. I say this without the evidence to back it up, but the anecdotal evidence is everywhere. I see it all the time as I preach UX improvements.
If my theory here is right, then the problem can’t be solved by preaching UX to businesses. I think it can only be solved by reminder end users that they deserve better.