It sides with the poor only if the powerful (gov) are hopelessly inept at gathering money. If there's a chance that current civilian power can reform and keep collecting the money from the people and funding the army then the army sides with them and help quell the rebellion.
Those who hold kinetic power will never side with poor against the rich.
Every time a government or military force has decided they were unstoppable or untouchable, history has proven them wrong. Hell we spent 2 decades in Iraq and Afganistan with the most powerful military and military tech the world has ever known backed by the strongest economy in the world against guys with 60+ year old bolt actions and guns filed out by hand in caves living in mostly desert landscapes, and we still ended up abandoning it because it was too costly. How would the military fair any better against the best armed population in the world with direct access to their supplying economy and logistics networks?
Yeah sure masses of people aren't making aircraft carriers, but you don't need aircarft carriers to win a war at home. We have modern engineering and chemistry text books in every library across the US that will tell you how military technology works and its flaws, what technology you can utilize find or make yourself, and a supply of nearly any material someone could possibly want or need sitting in scrapyards across the nation.
That's sheer fantasy.
https://www.instagram.com/reel/C9AdZVQuITM/?utm_source=ig_we...
https://www.armstrongeconomics.com/history/europes-economic-...
https://collectingpapermoney.spmc.org/wiki/Scrip_Issued_duri...
Governments love crypto because it lets you seize lots of money from criminals across borders. And it is legal gambling where you can tax the winnings without reimbursing the losers (unless they can offset it but most probably can not)
Because you need things they want. Like why would they spare the electricity to heat your home, when it could go to "better" use powering a few dozen GPUs serving a billionaire? Why would they spare the land for you to grow food, when they could use it to build ziggurats dedicated to their power (or whatever else is their whim)?
The market sends the scarce resources to those with the most money.