limitations help to ensure the wealthy are less influential.
Campaign contributions in large amounts can influence the direction of an elected official and can be seen as interfering with the democratic process.
Historically, campaigns were inexpensive and until campaigning became more expensive little money was needed to win an elected seat. Today with the competitive nature of campaigning, more financing has been required and used. Large interest groups and wealthy individuals have donated large amounts of money to candidates. The Koch brothers for example have been cited as donating too much and offer an example for those in favor of restrictions.
