I don't know or care to know
I don't know or care to know where you live but here in Northern Virginia work place charging does not exist. a 40 mile commute is not the only driving that people do. People with lives come home from work and go to soccer practice and run trips to the grocery store and home depot. It all adds up in most cases to more than 40 miles for a lot of people. The Tesla is the only car that works all electric all the time. People that are wealthy still use the tax credit in their purchasing decisions along with lower fuel and maintenance costs. It all adds up. Every "Rich" person that buys a Tesla is a person not buying a "S" class or a 7 series so yes incentives for the "Rich" do drive EV sales and promote a cleaner environment.