That's a good point. Though I do think that in a lot of circumstances regular removal of odour is sufficient.

I recently spent a few months in the countryside with very little social contact (a great way to get a lot of deep work done). I would only shower every three or four days and didn't use deodorant. On the first day I smelled fine. By day three or four the accumulation of odour was noticeable. Since returning to civilisation, I've mostly stuck to a shower each day without using deodorant other than when I think it'll be necessary (like if I go out dancing).