It's hard to deny that Linus would not lose influence by having a modicum of self control and not saying someone should have been aborted because of a bad patch. Sure, maybe DJB won't become uber-famous by being nicer, but at the very least he wouldn't generate these sorts of conversations every time he writes something.
There's so many documented cases of people saying they don't want to work with Torvalds or Kalanick. In exchange for what? Being able to be some massive edgelord?
If even a single good core Linux developer would otherwise be contributing, Torvald's abrassiveness would be a net negative I think.