The aim of pressure groups is to 'influence the people' who has the power to "make decisions"
Pressure groups don’t participate in elections, they can be also called as protest groups, lobbying groups etc. Pressure groups don't look for 'power of political office' for themselves, but they look for influencing the decisions which had been made by people who hold this 'political power'. Pressure groups generally twist the decisions or force the government or the people in power to make decisions in their favor and they use protest as a means of disagreement with the people who govern.