Then who do you become accountable to for the 1K Sats?

If you are looking to build a product, build it. If you need funding to build a larger project, apply for funding, either through mechanisms like nostr:npub10pensatlcfwktnvjjw2dtem38n6rvw8g6fv73h84cuacxn4c28eqyfn34f or via traditional angle or VC routes.

I'm not sure what the purpose of 1K Sats is.