Could be a semantics problem here but I couldn't agree more with:
"Is there any reason why someone would not find value in both positions at the same time?"
and everything you said after it.
Both positions have the same goal.. both positions are likely necessary to succeed.
I appreciate it, and you make some good points.
There are some differences. The engage camp expects to engage and go into the social construct of state and dismantle at the power hub.
The defect camp is more a war of attrition/subtraction from the outside.