Political Action Committees (PACs) are significant because they serve as a vehicle for raising and distributing funds to influence elections and legislation. PACs allow individuals and organizations to pool resources, ensuring their voices are heard in the political arena. They support candidates who align with their interests, enhancing political engagement and advocacy. However, PACs can also contribute to the potential for corruption in the system, as large donations may create undue influence over elected officials and policies, raising concerns about fairness and representation in democracy.