[anticodon]

English is not my first language and maybe I misunderstood you. But #3 is net positive only for USA. Of course, if you live in USA and watch and read only us media, it's self assuring to believe "we do it for greater good". But it's not.

[novaleaf]

I think you could argue that cultural domination is bad. I was mostly thinking of technological and scientific improvements that came out of the USA: from nuclear to gps to smartphones.