Particularly when, as in the case of UK water privatisation, there's a fairly convenient revolving door between the supposed regulator and the privatised water companies. Poacher turned entirely ineffective and rather friendly gamekeeper...
Nitpick - English water privatisation, I don't think the rest of the UK has private water companies - we certainly don't here in Scotland. Scottish Water is controlled by the Scottish Government.
You're absolutely right, English - my family north of the border are no doubt cursing me as we speak, I'll go and replace the cone as penance next time I'm there.