Bitcoin is only part of life. An important part, but not everyone can devote themselves entirely and completely to it, and it is also not necessary for each and every to devote themselves so selflessly to bitcoin. It is best that everyone develops in what he is especially good at. I'm not likely to be a good bitcoin core developer, so why would I get in the way of professionals? It seems to me that if we contribute even a small share to the development of bitcoin, it will already be good.