That's the selfish part; it's not what other people want for you, it is what they want for themselves, you in their world. Suicide tears a hole in the space time continuum and that affects everyone:

"No man is an island, entire of itself; every man is a piece of the continent, a part of the main; if a clod be washed away by the sea, Europe is the less, as well as if a promontory were, as well as if a manor of thy friend's or of thine own were; any man's death diminishes me, because I am involved in mankind, and therefore never send to know for whom the bell tolls; it tolls for thee." ~John Donne