No but he's trying to influence the presidential election just like any other wealthy individual who has strong political leanings.
I think it's inevitable that money will run the show and any restrictions will probably have unintended consequences.
Rupert Murdoch you say? Surely you don't see the bias in hollywood and everywhere else? As far as I know, I don't think I've seen many conservative view points on TV apart from Fox and the right leaning publications which aren't popular (most people read NYT and don't read any conservative blogs).
Once again, your arrogance is over the top. You said, he's on the right side of most issues according to you. Understand that there are a lot of people who disagree with you and have valid reasons for disagreeing with you.