Sure, why not? It will be expensive but not "only 0.01%" expensive. Also humans will be sceptical about it first, reject technologies and improvments.

Technology will lower its cost as it always does. And when there is no problem with resources what bother you about lower developed? What bother you about native tribes living in Amazon forest?

If Id be immortal super being then absolutly won't do nothing bad to humanity because I wont ever bother.

What's hostile? Super intelligence? That it would be fractions more inteligent than we're and won't even think about human anihilation?