I think of Hive as being more like the internet or bitcoin and Leo as being something more like Google or Facebook, but obviously way cooler.
You could theoretically fork Leo away from hive but it would be a stab in the back to the people who helped it grow but more importantly, it would cut Leo off from being part of a true decentralized DAO which cannot be replicated.
We could easily have more great projects built on hive and we will!