I don't think Ronda will let her ego take over and ignore her Fight IQ. She's always had an ego and it hasn't really been a detriment in her fights yet.
Even in the two fights she won by KO/TKO it seemed to me like she was using striking to set up grappling and just happened to knock out her competition. Case in point Ronda still threw Alexis and took the fight to the ground even though Alexis was already out of it.
Yes I know Edmond said she would win with strikes but that was his prediction based on her progress. I don't think her gameplan was to stand and bang the whole time in both fights.
Also Ronda has always used striking to soften her opponent and get into the clinch (ie Sarah Kaufman). She's just become better at striking and happens to now take other girls out with strikes as a result.
As an aside: am I the only person who wants to see a video of Ronda sparring with Jessamyn one-handed? I know she did it while healing from a broken thumb and I think it'd be interesting to see.