I was about to post more or less the same thing.
Bob Kane muscled Bill Finger out of credit and royalties for the creation of Batman.
Stan Lee had a reputation for screwing over his collaborators and taking credit for works that were almost entirely the product of the artists (Ditko and Kirby in particular). "Marvel Style" script-writing is more or less an excuse for Stan Lee to getting writing credits on a whole bunch of stories without doing much storytelling at all. Lee's major contribution to Marvel was by letting Jack Kirby be Jack Kirby, and then he treated him like ****.
Kane's was more blatant, Lee's had a wider scope.
Both are lionized creators who's contributions were more the product of their collaborators than themselves.
Edit: To clarify, these are both situations where a creator got screwed out of creator credits and royalties by getting locked into work-for-hire contracts.