[yodsanklai]

It's a bit more complicated than this. First, averages hide a lot of variability, both in skillsets and salaries. You have SWEs earning very high income. Also there's the question of opportunities. Some of these SWEs/devs could have had better prospects in different fields, while others not. And there's also the question of whether you like what you do. For many people, programming is a passion.