I think Paul is a workaholic. He also is a bit of a control freak. He still, now, goes to work at 6 a.m. He is like a drill sergeant who has a list of things to do, and does them at his pace, then just moves on without regard to the pace of others. It's been his pattern throughout his career. Who else would get to a recording session an hour early and record an entire demo, by himself playing multiple instruments, that later turns into a hit record (and actually made their career) for Badfinger? The other Beatles wanted to relax - he didn't. Perhaps you all just misjudge him a bit, he isn't malicious, he is just driven, and has the perception that the others are not at his speed and are just holding him back from his own destiny. His output dwarfs that of the other Beatles put together.
There's an interesting interview of his on a 1979 documentary, when he goes off on how, despite unemployment, anyone can succeed just like he does if they would only work hard enough. Quite an attitude, I think. He finished with Wings - and ended it with a press release. The end of the Beatles sounds awfully similar.
Just something to consider.