I do.
You used it as an adverb, because wrong can function as an adverb by itself. Also, it's "grammar" though I'm guessing you did it intentionally (you capitalized the E) for some reason.
Adverbs are pretty free, so "doubly benefit" is just as grammatically correct as "benefit doubly," but one may sound better to native speakers (ie, the latter) but not in all cases.