Wow, that is extremely depressing for me

This is a general rule in life. If you're flexible to take the jobs that are currently in the highest demand (such a pedestrian web-dev or backend Java jobs), you'll make a lot of money. However, if you add a hard constraint to your search - say you want to work with biology-related stuff or in video games - your salary will depend on how profitable that specific industry is at the momement, and how many people have the same dream. In practice, usually it means making way less money. In other words - if you optimize for anything else than money, don't expect a lot of it.