It's not a religious thing - plenty of atheistic limousine liberals vote against their own self interest. Most scientists also vote D, even though voting R is the best way to increase scientific funding.

There are plenty of people in the bottom 47% (predominantly tax consumers) who vote R and in the top 53% (predominantly taxpayers) who vote D. Are they all doing it purely because of religion?

If you look around, you'll see lots of people voting for reasons other than self interest.

Your scientist example isn't very good. Scientists have self interest that extends beyond just getting more funding for their work.

Yes, and everybody else on that list has values which they allow to override their narrow pecuniary self interest too.