I personally would only vote for a neophyte if you are in a small chapter that is growing or in need of serious change. Or the guy is gusteau-level awesome
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My bigger concern is spreading himself too thin. DBB has some good advice here. I think a good and older friend in the chapter might try to get out of him WHY he wants to be president and an RA at the same time. He may just be an 18 year old know it all who thinks he's knows better than everybody else and can handle responsibilities in a super-human way when others can't. Plus, part of college is learning to make choices, and trying to take on 2 big leadership roles just because you don't want to choose between the two is not the right way to go.