No need to be sad!
The law of karma will look after everything! The corrupting politicians always have to pay their prices in the end. They often became very ill and had to spend lots on money on hospital bills!

In the long run, nature will heal itself through time. One day the road will disappear because of natural causes! That is not a good place to build a road!

Just observe life and things have a way of bringing themselves back to equilibrium, it just takes time!

Cheers.