Conversation so far:
What is significant about Barry Bonds's public persona?
Bonds was frequently described as a difficult person, surly, standoffish and ungrateful.
Did he get in fights?
CANNOTANSWER.
Are there any other interesting aspects about this article?
Giants he changed his demeanor at the behest of a group of teammates.
What did he change to?
resulting in him smiling much more frequently and engaging more with others with a pleasant demeanor.

Question: Did this help his public image?
Self-contained rewrite: Did smiling much more frequently and engaging more with others with a pleasant demeanor help Barry Bonds' public image?