It's not Katie Price's responsibility to support everyone else (although, as she lives in the UK, and pays a lot in tax on her high income, she does a LOT more towards supporting everyone else than people like Lewis "keep it all for myself" Hamilton).
It's very difficult to separate personal financial circumstances from state entitlements.
If you did then, logically, you would have to end up with a system where people could opt out.
For instance ...
If a person has private medical insurance, three cars, a private pension, and sends their children to private school ... why should they pay towards the NHS, public transport, state pensions, and the education budget, when they are never going to use any of them.
Should there be a tax option where you just contribute towards Defence and Culture?
Clearly not. The system is, if you pay IN, you CAN (if you wish) take out.