The hardest-working people I know are barely aware of the economic standing of their own families.
I find this all but impossible to even consider.
introverted workaholics, and I admire them deeply.
Odd that you would admire introverted persons, most success comes, at least in part, from success in dealing with other people regardless of skill level.
If you are highly capable in a certain field, nobody really cares how you are dressed.
The whole dressed for success deal passed you by eh? People do care about such things, at the very least you should be dressed like you know what you are doing and why - in the sense that people who would show up to work with me in dress shoes obviously don't know what they are going to be asked to do. We have several dress codes for work, depending on the gig, ranging from opera/symphony, full dress formal, to rock concerts, which oddly enough have their own informal code.