My wife and I have a parenting disagreement. Who's right?

We’ve been married for 12 years, but lived together for 8 years before that, so it’s a 20 year relationship. I learned in first 6 months that it doesn’t matter who’s right because she’s right. There’s a comic named Ralphie May who says that married guys basically have to decide whether they want to be right or they want to be happy. That pretty much nails it.