A human way of implementing N+1 redundancy.
When you’re washing the dishes, do one of your roommate’s dishes too. Order fries for the table without asking. Leave a bigger tip when you get an unexpected discount. Give that revolving door a second helping of shove. Pay your taxes. Whenever you have it in you, be a slightly more generous human than you need to be.
This isn’t about “collecting karma.” It’s about adding a bit of slack to the reins of society. Though No one is coming to save you that doesn’t mean you can’t be endlessly helpful along the way.
You’re helping because you can, not because you have to. If even a quarter of the planet did a little more than they should, we’d all be very well off indeed.