This should be remembered when adding examples below.
Also note that a protagonist can rarely be a MPDG because as the main character, she is most likely to have independent story arc and depth of character.
The story may even be told from their perspective, revealing that there is more to them than bringing adventure to brooding guys.
Deconstructions of the idea may show that they resent being considered only useful for the benefit of the main character, idolized as something that they are not, or that once the main character reaches their "enlightened" stage, the MPDG moves on to the next person who needs their help.
I wish it had ribbons on it or something to make it slightly cuter!If only someone could come along and open your heart to the great, wondrous adventure of life...Have no fear, the is here to give new meaning to the male hero's life!Despite all that (or of all that), there are ways of utilizing this trope without falling into that pitfall.Given enough time, Character Development can add to their personality and interests and pull them away from the MPDG foundation.