He paid for disgusting, dehumanizing ads. And his views have not changed -- if they had, he would have said so. He did not, nor did he disavow anything his money went toward. If he had, he would still be CEO.
No he didn't... he funded an organization (with a one-time $1,000 donation) that was against same-sex marriage. That's a far cry from directly funding adverts.
And, at the time, his view and contribution was in the significant majority here in California. Today, maybe not, but back then, his views were shared by a vast majority (almost 60% in the vote). That's not to say it's right... only to point out we are chastising an individual for past beliefs that were popular at the time, but have gown to be unpopular today.