I've always been interested in why personal identity was tied up in a career. If you self identified as a mathematician, why couldn't you earn more money being a bartender in Australia while spending your free time doing math and participating in the mathematical community?

I know "scientists", "artists", and "teachers" who identify as such and make their money doing other things. At the extreme end, if you identify as a teacher why not spend 15 hours a week making a very high income doing XYZ and maybe 35 hours a week volunteering/working for low wages at a tutoring center? You're undeniably a teacher, and you likely have more disposable income.