I would lay long odds that upwards of 90% of the U.S. citizens taking Eich to task on this thread voted for Barack Obama.
So being opposed to gay marriage disqualifies you from being the CEO of a tech company, but not from being President of the United States.
That's a...convenient...position. Just not a rational one.
Personally, I don't think the government (and certainly not the Federal government) has any business being involved with marriage in the first place, other than providing a registry for the contracts and a court system to enforce them.