You have to work 2:45 hour per month (I do childcare), and we have monthly GA meetings to vote on things.
We also have a fund / capital, training, and even labor available for others who want to start cooperative grocery stores in their area.
I think coops are more suitable for that "change the world" while being "revolutionary" story. In fact many anarchists (and market socialists, and mutualists) envision a big coop sector to democratize work life. I think it's pretty revolutionary in that way. Noam Chomsky and Murray Bookchin promote these ideas.
I don't think there's anything wrong with caring about money, in fact I think it's a mistake not to care about money in a system that revolves around money. However, listening to people tell me how "passionate they are about 'X'" when in reality they are only passionate about making money is one my biggest pet peeves.
If there was a way coops could raise significant funds to start say a big box chain store, we might see more of them. I don't think small business loans quite cut it here.
On the one hand, the market remains this way where people with money are more easily able to make large sums of money through investment, by making their money do the work. The system in this sense is self-perpetuating, but strictly speaking, doesn't have to be this way.
On the other hand, as a thought experiment, imagine a magic wand was waved and all capital and resources were evenly distributed across the national or even global population. The world would still be left with an inequality of people's ability to earn each others money. Those with good health, savvy business sense, in-demand skills, and knowledge of production would quickly start down the path of quickly earning, while others are left only spending. I don't think it would take very long to end up right back where we are today.