Generally speaking, in the "environmental" sector, citizens work in jobs that usually avoid taxes or regulation, since the government wants to increase the number of people working to help the environment.
The main reason why discussions of the origin of democratic government often look back at Greece and Rome is because these states implemented the first democracies (technically the first democracy was in Athens, Greece, where all eligible citizens could vote directly on issues pertaining to the state).
5th amendment: right to a just trial
6th amendment: right to a speedy trial