Say you have $2.5 million in income for the year. For $1.25 million, the government maintains the system that allows you to spend it as real wealth. It maintains the system that enforces your business and employment contracts. It enforces that when you deposit your money in a bank or buy stocks, you don’t also have to pay for your own gunmen to make sure you can get your money back out. It makes sure that when your house is on fire, the firemen don’t first evaluate your net worth and then extort you in front of your burning house. The mafia comparison severely underestimates just how much useful (wealth creating) infrastructure modern governments provide.

All of those things were essential for you to have earned your $2.5 million in the first place without always having to look over your shoulder in case the local warlord notices your money and decides to take it.