They were maladroit enough to attack him on his least vulnerable side, summoning him before the privy council to answer to a charge of receiving bribes in the administration of justice. How would you define maladroit?
The term proletariat is used in Marxist theory to name the social class that does not have ownership of the means of production and whose only means of subsistence is to sell their labor power for a wage or salary. Proletarians are wage-workers, while some refer to those who receive salaries as the salariat.
He described how the wealth of the bourgeoisie depended on the work of the proletariat. Therefore, capitalism requires an underclass. But Marx predicted that the continued exploitation of this underclass would create great resentment. Eventually the proletariat would lead a revolution against the bourgeoisie. The final struggle would lead to the overthrow of capitalism and its supporters.