Maybe? I would like to think so - On the positive, I am an educator and research scientist and my work one day (and to a degree, already has) affected provincial policy and approaches towards recycling.
On the flip side, I don't know how much monetary value any of that has. Arguably, anybody in the service industry has more direct influence on people's day to day lives than I ever will. Sure, I may change policy, but so did the nut jobs who carried out 9/11. Policy change can result from both positive and negative catalysts.
I do hope my students go on to achieve great things and can affect positive change in the world. If I can contribute to that in some small part, then I would say I am worth 50k.