You live in an apple to oranges world?
I live in a practical worlds. Palin has got a lot of press picking and choosing who she supports in the Republican primaries. As RNC chair that has to stop. Palin has been selective in the RINOs she backs, and has gotten a lot of criticism on those she does support. As RNC chair she has to go out there and back every RINO running. As RNC chair, Palin is no longer the 'rogue' she loves to paint herself as. She is the party functionary and has to act as such.
If Palin wants to put a stamp on the GOP then fine, be RNC chair. If she wants to run for president in 2012 then forget it, there is no upside to her in accepting the spot.