Fediverse

Correct me if I'm wrong. I read ActivityPub standards and dug a little into lemmy sources to understand how federation works. And I'm a bit disappointed. Every server just has a cache and ability to fetch something from another known server. So if you start your own instance, there is no profit for the whole network until you have a significant piece of auditory. Is there any "balancers" to utilise these empty instances? Should we promote (or create in the first place) a way how to passively help lemmy with a such fast growth?