expected to do a lot of benefit/threat/harm to sb./sth. else. (e.g. Cloning, as a new-born thing, is expected to do a lot of benefit to the human progress.)
4) (Doing) sth. will enrich/endanger/influence one's life in more than one aspect.
(e.g. Having one's head in the clouds sometimes can enrich a good teacher's teaching in more than one aspect.)
5) Some good/bad/unexpected effects come of what