I'm trying to imagine the chain in reverse order, and without reference to money but just to things people want. So Pfizer has this idea to organize people to make more medicines. But this is slightly risky, because it's not a shoe-in that people want more medicines. So they need permission, and lenders can grant that, but only if the lenders' other, um, projects have been successful recently, which equates to "consumer confidence", and that is due to millions of flower arrangers (or equivalently frivolous businesses) successfully pleasing flower-likers. It seems to amount to: if people are generally making one another happy in small silly ways, they have the courage and imagination necessary to try doing bigger stuff. If not, they're all like "I didn't even get to see any pretty flowers this week, I'm in survival mode now", which means they aren't throwing much permission to do stuff (money) around, and consequently there's no will to try anything, and that's a depression.

I note that Pfizer's new factory is a venture, and although it's medical it's debatably not necessary for survival: it's not part of homeostasis.