To the original poster - I know how you feel, we've all been there, and some (me) are still struggling to find balance with hobbies, family, and God.
Have been thinking about talking with my youth pastor about starting a RC club for children and adults in our church.
Started tweaking one of my RC's into something my wife would like to drive. She has no interest in this hobby, however, she loves God, guns, and the colors pink/purple. So one of my stadium trucks is getting done in those colors with a beetle body.
Also, I now take my children out with me, and got my son a Dromida Wasteland for his 5th birthday a few weeks ago. He loves it, but feel it was the wrong choice. Should have gotten him a crawler because he likes to pile dirt, rocks and other various stuff into large mounds that he insists on driving over.
You could also pray before each bash / race session.