Might as well consider #btc to #gold .. because USD is just another currency .. commodity to commodity is a better way to understand things ..
If you do want to project currencies than cents per #Sat is probably right unit ..
Units are important.. they stick in the mind ..
Bitcoin became a store of value because we talk in terms #btc .. if we talked about #sats in all Bitcoin education , it would have become a currency ..electronic cash as envisaged by #Satoshi