What is Control? (Scene from Matrix Reloaded)

Councillor Harmann:...what is control?
Neo: If we wanted, we could shut these machines down.
Councillor Harmann: [Of] course. That's it. You hit it. That's control, isn't it? If we wanted we could smash them to bits. Although, if we did, we'd have to consider what would happen to our lights, our heat, our air...
Neo: So we need machines and they need us, is that your point, Councilor?
Councillor Harmann: No. No point. Old men like me don't bother with making points. There's no point.
Neo: Is that why there are no young men on the council?
Councillor Harmann: Good point.