This is an ongoing discussion. Part of Working Groups AIP is to help bring clarity to this and more structure to the whole process.
In general - anything we collectively decide is good. 
Good for what, you may ask? “The ecosystem”. Defined how, you may ask again? However we define it, it seems. What’s good for $APE, what’s good for governance, what’s good for NFTs and our collective experience. Infrastructure, entertainment, partnerships, events, gaming, etc.
I think legally founders couldn’t define this more b/c that would be seen as exerting control and thus it wouldn’t be decentralized enough (from what I know about these things from my web3 accelerator days).
Very broad strokes here: ApeCoin - Governance