Rules for thinking about political power:
1. Power that can be abused will be abused eventually.
2. Power that can be abused in secret will be abused much more quickly and more often.
3. Once power is abused once, it will be abused again more easily.
4. The power to gain more abusable power will not end well for anyone.
Mokalus of Borg
PS - I realise these rules are all about abuse of power.
PPS - Because, really, power that's not being abused is almost not worth worrying about.