You owe it to yourself and your congregation to at least try it. Unless the players and vocalists are seasoned enough to exercise some restraint, you're always going to end up with one person asking for more of their instrument in their monitor, after which someone else asks you to turn their instrument up. That of course prompts another player to ask for their instrument to be louder, which eventually comes full circle with the first player asking for yet more of their instrument in the monitor, and so on. Obviously there comes a point when the desire for louder sound reaches a point of diminishing returns. It's up to the sound mixer to communicate that reality to the players on stage, and convince them to work with you to bring the level down.
Some drummers still insist on playing acoustic drums.
That's the same argument that pianists used to proffer when they were presented with the early electronic keyboards, and look how important a musical instrument they are today. But an instrument that sounds as good as some of the electronic drum kits these days is still a viable tool that should not be ignored. They offer churches a big drum sound without the sheer sound level that comes with an acoustic kit. So try this. In your next rehearsal arrange to have another drummer on hand to play the drums, and have your drummer come out into the audience to listen with you.