The Rich/Government has used money as a tool to oppress the poor in a way that they practically use it to control everything in the world with the help of financial institutions.
The high class as they are called has maintained dominance in everything, not to be bitcoin biased or cynical, but in this case, I see Bitcoin as the alternative to this controversy and if we want to eliminate the power that is intoxicating us, then we must advocate for alternative means, Bitcoin as a currency without any central control will handle this menace in a manner that everybody will have power, control and self custody of their bitcoin, the market forces will now depend on more individual investments in it and group or institutional adoption, just imagine making Bitcoin handy and accessible to the populace.
I think the world will be a better place without notice or segregation between the rich and the poor if Bitcoin is embraced fully since Bitcoin is not a currency of a particular country everyone has the equal right and power to either store it or use it.
In as much as I agree with you that one of the main reason why the government is as powerful as they are is because they control our fiat, let's know that it gies above just controlling of fiat. The military and all the security agencies are all under the government which makes it easier for them to execute whatever plan they have in mind. Maybe if Bitcoin gets accepted in different part of the world it will go a long way to allow individuals have authority over their money and how to go about spending it without serious regulations from the government but fixing the money alone can't fix the world directly.
You've got to fix the monetary system, work on institutions that will support the populace, seek for the separation of powers from all the arms of government such that they can exist independent of themselves and and then fix the mindset of the people to become more productive enough to using the privileges that decentralized finance brings to thier advantage.