Your problem is that you are seeing Sindome the wrong way.
You are living in a city smaller than Manhattan but with the population of Thailand. Ten times denser than Hong Kong in Red sector. It's a dystopia. You are supposed to be living the hustle, you should be scrapping, scheming, thieving, murdering, lying and to get ahead of your competition, it's a lion's pit where everyone gets ahead of everyone and where at least half of the population is living under the line of poverty. Yet, you expect 'unlimited work' and that is NOT how Sindome works and NOT how any dystopian society works.
The crates are limited because it's a way to let you learn the layout of the city and it lets you get an initial amount of money to pay your first week of rent and get a better set of clothing. It is no means a way to make you rich. It is not going to get you ahead of everyone. And most importantly, running crates or working at SHI is NOT going to make Sindome for you. SHI is shit and it's intended to be shit because if you work at SHI, your character is worse than just a Mixer: they are SHIT, the UNDERCLASS, the SCUM of society doing menial work for almost nothing. Tell me, is there anything more dystopian and cyberpunk than that? Put yourself in your character's shoes. You arrive to a jam-packed city, you're just ANOTHER bag of flesh, and you get to do manual labor in a factory. OBVIOUSLY they're going to pay you ridiculously little amounts of money. This is cyberpunk: the struggle, the fight for survival, day by day.
Cyberpunk is not always about being a downtrodden piece of shit (in the figurative sense). If you want the -real- chyen you have to go out and RP. In your post you've mentioned that you want unlimited crates because if you don't work, you have nothing to do. Now think of this, if we had unlimited crates, would that make your experience more enjoyable? You could make more money in the long run, but you're never going to enjoy RP because you will be all day running crates! Sindome is about ROLEPLAY. It's driven by CONFLICT, between you and other players. If you can't achieve that, then this game might not be your piece of cake.
I won't even lie. The crate system is shitty. SHI is shitty. But bitching about it in the board is not going to do anything better for you. It's not going to change because this has been the imposed system for years. And the underlying reason under all that is because you are supposed to struggle. It's supposed to be like this because it forces you to go out, interact with other players, and look for better opportunities: not subvertly inviting you to grind for cash running crates all day.
Take it how you will. Claw your way to the top, settle down being the man's lapdog, sell your soul to the corporations for a comfy job, but go and roleplay, and I promise you'll have a better time.