In North America this is Labor Day. I had vaguely assumed that it was ginned up early last century to keep May Day, with its lefty connotations, from catching on in 'Murrica. Good old Wikipedia set me straight. 'Our' Labor Day originated decades earlier, in Canada, while the call for a workers' holiday first arose in Australia.
If there are large numbers of humans in outer space, most of them will be workers. They will be working as researchers and assistants, engineers and technicians, administrators and support staff. Perhaps there will be Belters with singleships, but the great majority of people in space are likely to live in complex habitats, kept functional and alive by hundreds of specialized trades, professions, and crafts. And a great deal of plain hard work.
'Spacer' is, in essence, a skilled blue collar trade. Spacers (or whatever term emerges for them) operate heavy machinery, some of it very heavy and much of it exceedingly powerful and dangerous. They deal with precision devices, some of them exceedingly fine and delicate. On this blog I casually discuss large interplanetary spacecraft with plasma electric drives rated at a gigawatt, instruments that measure nanometers, and life support for hundreds of people. Someone builds and operates these fabulous and complex vehicles, and those someones are spacers: workers.
Given the high costs and resulting high automation there probably won't be full time potato peelers aboard spacecraft, but someone will end up peeling them. And once things get somewhat established, the necessary scut work won't get evenly distributed. Universities, the military, and big civil engineering contractors offer three different models of how things can get done, and none of them is the least bit egalitarian. Some sort of hierarchy of work is likely to emerge.
Science fiction has long been aware of this, and there have been a fair number of stories about labor unrest in space. Given 'Murrican political culture, in the rocketpunk era such commie stuff might be tucked well into the background. All those rebel colonists have to be rebelling over something, and it probably is not all abstractions about liberty and independence. At least not to start. More likely it begins with disputes over pay and working conditions, then spreads to the question of why someone who has never been to Ceres is making decisions instead of the people who live and work there.
Those who plan the human presence on Ceres, and those who pony up the money to get it built, also have their rightful claim. But since they generally appoint the decision makers, their claim rarely goes unheard. The working crews are expected to be content with their paychecks - not entirely unfair, presuming they signed on by choice, but not the whole of the story. They create a value above and beyond what they get paid for. (If they don't, why were they hired?)
The workers in space will have a stake in the work they do, and ultimately the biggest one, since they will build the human presence in space. And will be the human presence in space.
Image of space station workers from NASA, via RobiNZ Personal Blog.