Interesting! I have a BA in Mathematics, I was always 'good at math', and I'm currently a programmer.

I've never before considered that an "aesthetic sense" could related to mathematical ability, but it makes a lot of sense. I'm an extremely visual thinker – when I'm confused I feel blind – but I realize now that I spend a lot of time 'reasoning' by translating and transforming claims and statements and beliefs into different forms. The maximally insightful forms are almost always also the most pleasing to my eye – and I think you're right that that's not a coincidence.