In 2009, I accepted a new position at a new company.
The owner of the company personally came up to me and advised I was not to wear my one earring in my one ear to work, to meet clients, to company events, basically anytime on company time.
Meanwhile, back at the Hall of Justice, a female employee that is a different color than I was always sporting her nose rings....PLURAL on company time, everywhere I listed above that I was forbidden to wear my earring.
And no, her noseringS were not cultural. She made that abundantly clear.