At every companies I've worked at the CFO always has a large presence at every townhall, after all they are the one who is responsible for sending your paychecks on time. As for CTO, yeah it's a mixed bag in my experience, I mostly see them as just another layer between the CEO/COO and the principle engineers. Maybe that's exactly what they want though.

Yeah, probably in the US, where workers protection are mostly non existent - you need to be friends with the money!