What was the name of the belief system that considered wealth to be measured as fitness

The answer is Social Darwinism.  This beliefs is justifies the idea that the strongest and fittest or financially secure are the ones who rule.  They use this defend their accomplishments.  This was embraced by the Nazis but it is mostly biased thought.

from the conditions of the working class in england by friedrich engels,the main idea is :

1. where does the energy of a nuclear power plant come from?

d) political bosses should not hold office