Sure, but the 20%[1] of government spending that actually is explicitly in their interests is so fundamental to most rich people's ability to accumulate and enjoy their fortunes. The 80% of the rest of the spending is an acceptable price to pay if you consider it to be explicitly in their interest that the government is not subject to the capricious behaviour of the unaccountable ruler too. Today's government systems weren't designed by the poor.

[1]Pareto-inspired made-up-statistic