I figure it like in the Spider Man movies. With great power, comes great responsibility.
For one, the force has limits. The force cannot bring people back from the dead, it can't keep you living forever, and it can't let you travel back or forward in time (but there is a power that let's you view the past or the future, but you cannot change it).
Next, we have people who want your kind of power. If you reveal your power to others that don't already have it, they'll attempt to take advantage of you, become jealous, or afraid of your powers. This may end up with the Military at your doorstep.
Not to mention, your powers of the force don't constitute any kind of weapon except in non-conventional terms, like lightning, push, or grip.
It's hard to say what i'd do with my powers. I guess I'd go a little Sith and get myself some cash to work with, but otherwise I'd help people discreetly and create my own underground Jedi Academy, for Force Sensitive users.