Now it's getting hot!
Okay, Aethership operator. Let's start there.
'Cuz - Firefly.
Motivation, profits. This means we won't be saving the day, unless we absolutely HAVE to have a guy being cheeky about it (Han Solo).
Now, I'm grouping the whole party together here folks. So, the Firefly story informs me that a mix of adventures that push a story and those that build a world is a great mix!
Choose some:
Heist (typically morally ambiguous unless re-theiving)
Errand
Business rivals (to you...or two 3rd parties)
Creature on the loose
Something lost
And there could be so many more without invoking "the authorities", or "an ancient secret", or "actually just kidding the world is ending".
Kinda a whole diff' tangent, but when they're talking idyllic utopia, I'm thinking that seems sappy because of my underlying ideals. Like a utopia is some Laura Ingles Wilder thing--but one where Pa doesn't even need to worry about predators in his barn in the big woods. At the least this is about poorly perceiving a world. Excusable in a fantasy world for which I lack the background, no?
BUT, switch to a much less boring meta and you can have a world where a 15th century Turkish food stall vendor could be your campaign--guy is working to get good ingredients, more cheaply than his competitors, is funding his nephew's fighting kite, having trouble getting good string, gets a good tip from royalty passing buy, helps a poor beggar to be rehabilitated, weathers a long drought in his city, teaches his children to read, trains pigeons to poop on his neighbor's house, eventually acquires a camel, travels across a beautiful desert to visit his ailing father and then POIGNANCY! The End.