Buffett: Banks Victimized by Evicted Homeowners

I thought he wanted to join the 99%'ers.  If so, why did he invest $11 billion in Wells Fargo and $5 billion in Bank of America?  Enough of the B.S.  He is playing Obama like a cheap violin.

http://www.bloomberg.com/news/2012-02-27/buffett-says-banks-victimized-by-evicted-homeowners-who-emerged-as-winners.html