If you've visited factories or other work places dominated by men, many of them go by the philosophy of zero attendance to neatness and cleanliness. Those are miserable places to work and even visit. Everybody working there are usually grumpy and miserable, including the boss.

Working all day in ugly software is like a mini version of this.

I don't think anybody considers beautiful software ad a premium, more that ugly software will not be considered at all because it can't be trusted.