Theodore Lowi argued, in his 1969 book, that interests groups would have power by the amount of money they had and nothing else. Irrespective of the cause they stood for or the value of that cause, their financial means would present undue influence that would dismantle liberalism.
What is the context of the question being asked to you?
Lowi argued that ultimately Congress was responsible for interest group politics. The delegation of an increasing number of tasks and solutions to bodies that advise Congress (interest groups) was responsible for an increasingly unwieldy bureaucracy that required interest groups.