We all do what our managers / tech leads / architects tell us to do in the end of the day. Even if you have a lot of say where you work, eventually you will join a company with an established stack over which you'll have little control. If you're going to do web development there's zero chance you can keep this up forever unless you're working for yourself. Don't get me wrong, I wish the industry would do more of what you're describing, unfortunately it's just not happening.