Lobbying firms exert influence over government policy by advocating for specific interests and providing information to legislators. They play a crucial role in shaping public policy and can enhance representation for underrepresented groups or corporations. However, their impact often raises concerns about transparency and potential inequalities in political influence, as those with greater resources can exert more power. Consequently, the effects of lobbying on government policy can lead to significant debates about ethical practices and accountability within the political process.