representation was made fairer by getting rid of rotten boroughs
; the House of Lords lost its veto.
All of the things above give the common people with a very large influence in the government. Before all this, the nobles could create whatever legislation that they please without any consequences.
After the parliament become more democratic, the members of government had to conform to the will of the people if they do not want to lose their position.
The Reorganization Act allowed to president to hire confidential staff as he saw it fit, while also he was given the power to reorganize the executive branch of the government.