When I worked at PayPal, some of the execs would say "we don't make money by giving it back to people". These were the execs that worked directly with Theil and Musk and I'm sure they're long gone, but it was definitely Theil and Musk who pushed for these types of policies right from the start (well Musk agreed when he showed up, he wasn't a founder of PayPal despite what he wants you to believe).