It's not an unsolvable problem. Free bus passes for people who live close enough to ride a bus, and some kind of sliding scale beyond that.

Or look up the national average or industry average or metropolitan area average commute time/distance, and build something around that.

Or give a $1000 stipend to every employee to either spend on gas for daily commutes or two flights a year to come visit.

Could certainly figure something out if there was sufficient motivation to do so.