Earlier quoted context omitted.
Certainly not everyone, but a lot of the people who have entered the field in the past decade are chasing the money. The never had the passion for it but they were and are good at it, so here they are.
The last remaining field is game dev. The pay is low and react kiddies cannot learn it in a week. I wish the pay was higher buy the passion remains there.
Plus if you go back far enough, you can work on something where there's no room to abstract out anything and your code has to be optimised for the bare hardware itself, which is always an interesting challenge.