is wanting to make money a bad thing?

sometimes i feel guilty.cos in all honesty i want to make money and i want to work hard to acheive that.does that make me materialistic?does it make me an ungodly, capitalist pig?whats wrong in being materialistic as long as im not hurting others or in fact i might be helping others.which i like to believe i am.the point is i want to make money not because i love the smell of it or want to flaunt it.i want to because i want to be comfortable and help out others.that cant be so bad now can it?