I found that with Masks it is worth remembering that it is emulating a distinctly different sub-genre. It isn’t terribly well suited for the comic book battle scenes (unlike, say, Champions) but I don’t think that is what it is truly aimed at. I think it is especially emulating the more talky and angsty stories.
I played in a game of Masks that tried to be a traditional superhero game and it didn’t work all that well.
So when I had the chance to run a game, I decided to make the focus very much on playing with the labels rather than playing with the fighting, if you see what I mean. Super villain monologues are great for ‘an adult telling the heroes something about themselves’ and thus shifting labels. Police react and tell the heroes what they think of them. Parents tell the heroes what they think of them. Heroes tell each other too 
I’m not saying that you must play that way, of course, but once I decided to make a Masks game one about the labels with superheroics as a backdrop, rather than a super heroic game with labels as a backdrop, it really began to sing for us.
Cheers!