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.
And if that ever feels too corporate/safe, there's also fan game development/modding. The lack of legal ways to monetise your work there means that everyone who'd only be interested in the field for money is quickly filtered out, leaving only those willing to plow a decade or so of their life into something for no financial benefit.
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.