They say the fastest way to make a small fortune in motor racing is to start off with a large one.
It's a cliche no less true for being oft repeated; scan the entry list of last weekend's Australian Grand Prix and you'll note that half the drivers on the grid either bring a budget or have had their careers substantially underwritten by a certain energy-drink sugar daddy.
Factor in the plethora of 'test' and 'development' drivers whose backers have paid handsomely for them to, in effect, hang out in the paddock, and that proportion increases massively.