I agree that a state (or country, etc.) will nearly always have a certain amount of amorality (or immorality, for that matter). However most legislatures have at least some morality as well. Taxes aren't always used to incentivize/disincentivize, sometimes they are gathered for public works or services, such as roadways, healthcare*, and unemployement benefits. I know that an individual may not always view those things as something the government should be taking a hand in, but I would like to think that, even if someone doesn't agree with the action, they can at least agree with the intention.

*the current state of the US healthcare system notwithstanding.