A better option would be to just not play with 4 players.
Everybody knows 4-player Dominion is kind of.. meh. Dominion is balanced for two players.
Everybody knows that some people think that, but not everybody thinks that.
Certainly, how Dominion plays varies a lot depending on player count, and you have to approach games differently with different counts. But those games are still enjoyable, so that's a feature, not a bug. Now, I have played Dominion with 5-6 players, and those games, I haven't really enjoyed. Everything below that though, I'm on board.