Well, yes and no on Chandler's impact on Hendrix. Chandler helped Jimi with some of the ins and outs of the recording industry, especially in the UK, but musically and Showmanship wise he was taught far more by the Isley Brothers, Little Richard, Curtis Knight, and all the people they exposed him to like Chuck Berry, James Brown, and all of the great Bluesmen like Muddy Waters, Howling Wolf, and the like. Chandler seemed like a good guy who had Jimi's best interests at heart(unlike many), but he didn't hold a candle to those people in terms of talent.
Bottom line is that Hendrix was a genius, and would've been discovered w/o Chandler.