I contribute to society every day by working in the private sector. That's why people pay me VOLUNTARILY for what I do - they value my services more than what they are paying me - so it is a net gain for them to do business with me.
By "social services", what you really mean are "services paid for with extorted funds".
If I hold a gun to your head, and told you to pay me and I'll build you a website, would that be right of me even if I actually did build you a website? Of course not. Calling a gang that does the same thing "government" doesn't change the morality.
So how are they supposed to build and maintain roads, garbage collection, sewage and water treatment, schools, police, national defense, etc etc etc? What do you propose, going around asking everyone nicely to please contribute what they think is fair and then praying that it covers the bills?
I'm not saying that the current system is ideal, but without FORCING people to pay to support these things, nobody would pay nearly enough to even maintain the barest essentials as listed above.