Most angels don't. I'm not making this up. Sure, there are contractual protections to make sure you don't sell the company for $1 to your Aunt Linda. And yeah, they want an interesting vision (most know that deep planning makes you too rigid, so don't encourage it).
The best balance is an angel that gives money, gives great advice and help when you ask for it, keeps you a little disciplined by asking hard questions, but largely stays out of your way and lets you run the company. Most angels know this-- and that's how most of them behave (I've raised money from half a dozen angels and pitched 15 or so).
It seems like you agree-- you don't want a master and you don't want an angel who "just forgets about you". 90% of them are neither-- so an angel looks like a good fit if these businesses (or future ideas) reach a fundable place.
My contention (which stands) is that your concerns with early stage investment are wrong (i.e. fear of loss of freedom/control)-- unless you're talking about the freedom to build an unfundable business... which is fine. A LOT of really freakin' awesome businesses aren't right for equity investment.