Todd May addresses Susan Wolf's thesis in Meaning in Life and Why it Matters:
A meaningful life, she claims, is distinct from a happy life or a morally good one. In her view, “meaning arises when subjective attraction meets objective attractiveness.” … A life of commitment to causes that are generally defined as worthy — like feeding and clothing the poor or ministering to the ill — but that do not move the person participating in them will lack meaningfulness in this sense. However, for a life to be meaningful, it must also be worthwhile. Engagement in a life of tiddlywinks does not rise to the level of a meaningful life, no matter how gripped one might be by the game.
May tries to reconcile that definition with the fact that we're "encouraged to think of ourselves either as consumers or as entrepreneurs":
To be sure, we must buy things, and may even enjoy shopping. And we should not be entirely unconcerned with where we place our limited energies or monies. But are these the themes of a meaningful life? Are we likely to say of someone that he or she was a great networker or shopper, and so really knew how to live?
The Dish 