No matter the income level, if you make something free there will always be someone who takes advantage of it.
Like the Tesla HPC that was installed at the Rabobank in Atascadero and later converted to a J1772 connector. Now it is monopolized by locals so it is almost always occupied if a Roadster driver wants to include it as a stop between the Bay Area and Santa Barbara. In fact, if a Roadster does happen to be lucky enough to sneak in, I'm told the locals have been known to chastise the driver for parking longer than a half hour. It seems they think it is there just for their rotation.
Similarly, I've learned that the reason the Tesla store at Santana Row no longer has a Roadster HPC is that a very rude local Roadster driver was parking there all the time and had even managed to damage the unit.