It's not a money issue. Even a profit-driven aviation industry still cares about safety to some degree, because the public is deathly afraid of flying and any perception of danger leads to cancelled tickets and lost profits.

It just so happens that there are better ways to make a plane safer than to implement ejection seats, which (by the way) tend to break bones and ligaments in the spine. Maybe it would be better to prevent the need to eject from a plane in the first place.