More dangerous and less comfy jobs were paid much more and/or given extra benefits.
Apartments queues were much shorter in small purpose-built industrial towns in the middle of nowhere
Dangerous jobs in bumfucknowhere (far north etc) were paid $$$$$
One couldn't be a writer or artist without attending university. And spots at university were limited. State needs X writers or artists in 5 years so that's how many spots are available this year. On top of that, being jobless was a crime. So you couldn't just pursue artsy stuff and leech off society either.
Same for the rest of the labour market. Central planning wants to kickstart XYZ factory in 5 years? Suddenly related universities get spots in XYZ next fall. You want to do ABC instead? Tough luck. Either study XYZ or do some unskilled job for years till few spots in ABC become available.