Test your theory bro. Ask the first stranger you see today who Ronda Rousey is, I bet they have no idea.
Then ask them who Chuck Liddell is. See what happens.
I don't have to "test" it. Just check face book, twitter, instagram, and every mainstream media outlet in existence.
ABC, CBS, NBC, NYT, Forbes, CNBC, CNN, Fox News, The Guardian, The Examiner, LA Times, Chicago Tribune, SI, Vogue, Cosmo, The Toronto Star, Globe and Mail, USA Today, PBS, Bloomberg, MSNBC, ESPN, Entertainment Tonight, Inside Edition, TMZ...
They ALL ran stories on Rousey and her fight before AND afterward.
7.5 MILLION facebook views on her WEIGH IN on Youtube.
If you can't see how broad her mainstream exposure is, I don't know what to say. Hell, they even run stories on her in international papers. They had articles on her in freaking PAKISTAN.
Step out of the MMA bubble... she has a level of fame that we've never seen in MMA. Ever.