That's what I mean by insulation. Bagging a "famous" engineer is a political and PR move and they get a lot of freedom to define the role, something that most of us can't do
Every one of us can negotiate and hold out for what is important to us -- sure, SPJ may have more leverage than most of us, but it's not required to be at that level to be able to find a place with freedom if that's what you are looking for.