Morrison could be an alcohol fueled jerk, but when it came to the band I don’t think he was that way. I don’t think he demanded more money, and the songs were all credited to the entire band.
Manzarek is the guy who encouraged him to write, to practice, to get to the studio, to show up for performances.
If Manzarek hadn't taken that initiative, the band would have been a one-hit wonder.