> However, it might cause rich people to pollute more by using their cars instead of flying, so there's a balancing act.

Sustainable Aviation Fuel is ~$1/liter vs ~$.5 for regular fuel. For a "big" Global 7500 that burns 2kL/hr the markup is $1k/hr on a plane that usually costs $15-20k/hr to rent.

Doesn't seem like a big markup for people who care about their public image.