Palin's journey is historic. Her arrival spells the beginning of the end of political parties and the apparatus that feeds off of them. Nobody owns Sarah, no special-interest group, no nothing. She is truly a candidate of the people.
Therefore, the RNC is an anachronism. They are nothing more than a middle-man between the people and the candidates. One can donate directly to the candidate of their choice. Why then, should I give to the RNC who would use my money to keep entrenched liberal Republicans in power rather than advancing my cause? So by helping the RNC fund raise, she is prolonging the very status-quo that she prides herself on fighting against.
I wasn't aware the RNC got involved in primary races. I thought that was the purview of the NRSC and the NRCC.