"...economic elites and organized groups representing business interests
have substantial independent impacts on U.S. government policy, while
mass-based interest groups and average citizens have little or no
independent influence." (Testing Theories of American Politics: Elities, Interest Groups and Average Citizens, Gilens and Page)
While Direct Democracy would not be able to balance the excessive influence of Elites and Lobbies - it would even allow them another avenue to garner support for their policies - it would definitely give the average citizen more say on all matters.
See also Jeremy Grantham's "The Ten Topics that really matter"
