O'rly?
He only, along with Stanley Clarke, redefined the role of bass guitar.
Didn't do as much? Such as being the only electric bassist voted into the Jazz Hall of Fame?
Such as inspiring kids in African countries to play bass guitar?
Such as making the top 3 list of influences cited by pro bass players?
Yeah, he didn't do much.
Tell me what Entwistle did again? Oh, that's right - he played loud pentatonic lines in a loud rock band.
Well gee, seems to me that Jack Bruce was there first. IN fact, if you listen to Entwistle before and after Cream you can hear clearly Jack Bruce's influence on Entwistle.
He didn't solo. He didn't redefine the role of bass guitar in any context. He didn't explore new musical territory. He rarely if ever ventured outside of the pentatonic/blues scale. He had an impact on big dumb arena rock. But then again, so did John Paul Jones and for that matter, Gene Simmons.