Fukushima disaster happened, and the world hasn't ended. Chernobyl blew up, and the world did not end either. In fact, between these two nuclear disasters (that did cause evident damage and even death), all of us were exposed on everyday basis to the fallout from coal burning plants worldwide - from mercury to uranium to thorium - which again caused damage and even death, and to the much greater extent than those two nuclear accidents combined. Again, the world is still here. Throughout the history there have been nuclear blasts, volcanoes, pandemics, stupidity, meteorites, floods, enormous fires, landscape-changing earthquakes, industrial disasters, yet life goes on. My message to OP: have a drink and don't worry. Do what you can to make things better, but don't try to do more than that.
A good way to get exceedingly wealthy is to trade millions of personal tragedies (cancers, birth defects, etc) distributed throught a large population for a concentrated reward that ends up in the pockets of you and a small group of similar friends. For an added bonus, reduce down the tax burden (aka 'financial violence') to zero, or even better, get the plebs to subsidize you
with their taxes. Such a sweet deal, when achieved, is well worth fighting to maintain.