You only want to contribute enough to your 401 (k) to pick up all the employer match money you can. (clark.com)
That means both candidates need several times more donors to match the money raised by their opponents. (nystateofpolitics.com)
In some companies that would mean that you could miss out on company match money, because that would never be more than x % of each check. (money.stackexchange.com)