You're not really convincing me, but I have been doing this for some time too. There have been a bit too many times when someone has been "working independently

You're not really convincing me, but I have been doing this for some time too. There have been a bit too many times when someone has been "working independently on large project" that turned out to be a total dumpster fire and I have had to clean up the mess. The hero programmers behind these projects all thought they were making a meaningful difference.