I've read both of your posts above and I disagree with you.
You appear to be arguing that an owner builder should be physically working on the job, otherwise, they cannot call themselves an owner builder. I think that's a bit of an odd point of view. I actually know a couple of builders who never do any physical work. Here's what they do:
1. Order materials
2. Co-ordinate deliveries
3. Organise trades
4. Arrange building inspections
5. Do paperwork
6. Pay bills
7. Take responsibility for the job and see to it that contracts are in place for parts of the job that are the responsibility of others
9. Pay workers comp, make sure OH&S requirements are met, building insurance etc etc.
I'm sure there is plenty more. An owner builder also has to do all of this and in many cases, including mine, hold down an 8 to 5 job as well. So why do you believe an owner builder MUST work on site?
Owner builder is a legal concept that allows a person to take responsibility for building their own house. It has nothing to do with whether or not they physically build the house. Anyone can be an owner builder.