I used to care more about what I wore, though I don't care what people really think of me.
I used to be pretty much like typical hoodie guy despite working in IT which worked against me. Britishy feeling in asia is so dominant that most of the aussie clients who used to come to office used to stare at us normal workers wearing hoodies and the comfort casual clothings. I never was a corporate guy and that kind of hurt the career though I saved it purely by being pillar and skills but clothing is very much still essential in corporate.