Governments are made of people, and people follow incentives. When certain people are permitted to violate others' rights, as the case is with governments, the incentives are such that many people become corrupted by the belief that they have the right to violate others' lives, liberties, and properties.

So you are correct, not 𝘢𝘭𝘭 governments are corrupt, but the vast majority of them are, because the vast majority of the people in them are, because those people are following poorly arranged incentives. Fortunately, 𝗕𝗶𝘁𝗰𝗼𝗶𝗻 𝗿𝗲𝗮𝗹𝗶𝗴𝗻𝘀 𝗵𝘂𝗺𝗮𝗻 𝗶𝗻𝗰𝗲𝗻𝘁𝗶𝘃𝗲𝘀 𝗯𝘆 𝗽𝗿𝗼𝘁𝗲𝗰𝘁𝗶𝗻𝗴 𝘃𝗮𝗹𝘂𝗲 𝘄𝗶𝘁𝗵 𝗺𝗮𝘁𝗵𝗲𝗺𝗮𝘁𝗶𝗰𝘀, 𝗰𝗼𝗱𝗲, 𝗮𝗻𝗱 𝗲𝗻𝗲𝗿𝗴𝘆.

The human beings that make up governments are subject to the same market dynamics and human psychology as everyone else. Unless they receive all the necessary education prior to buying their first sats, most of the individuals in governments will get into Bitcoin at the height of a bull market, have to choose whether to sell or hodl on the way down, learn all about Bitcoin, and then greatly benefit during the next bull cycle.

So yes, Bitcoin needs governments to help it become mainstream, but that's only because it needs people to value it before it can achieve that end. But the people, both in governments and out, need Bitcoin in order to store their wealth in a way that can't be debased, and transfer it in a way that can't be censored. Every problem in the fiat system, every rise in Bitcoin's price, and every piece of educational material produced will show more people why they need Bitcoin, and acts as another step toward mainstream adoption.