I think having it as visible metric would impact users differently - and hence tapping on the gig economy, would make great use cases.
I was observant of my own reaction when Martti added currency convertors. Wrote them here (sorry, long)
note1m4t3vfevqahzlln4flp8389jwkqrpceuluzqgp89rzcrlg5cww7sps0md5