+1 on the leadership count. I feel like that is the biggest benefit I have gotten from my experience as an infantry Marine. It also helps with humility - I feel it can become very easy to become egotistic in the money-fueled world of tech, and it's a humbling experience when you're working with people who don't care one iota about that.

Being in the military does suck for various reasons also though, but even that experience gives you lessons & motivation to take away from it.