mental health issue and addiction don't go "oh you've got money ill go now then" they are diseases awful illness for each individual no matter where you come from or how much you have.
That is true. However, if you have sixty million quid, you can (a) afford a taxi (b) afford a driver or (c) pay someone to walk your dogs on a Sunday afternoon. And if you are too ill to make that judgement, you manager, your mother or your PR company can make the decision for you.
You can also, as I am sure many people posting here have done either for themselves or for a family member, pay a few hundred quid to have an immediate psychiatric consultation at a few hours' notice. The punch line being voluntary admission.
Yes, such treatment should be available for all.
But it is a simple fact that if you are rich and unable to control your drinking, help is a phonecall away. A taxi is a phone call away. A dogwalker is a phonecall away. If he was so drunk he couldn't phone for help, then his mother calmly getting in the car with him, rather than calling the police or at the very least trying to stop him from driving, is unconscionable. And if he wasn't that drunk, he was perfectly able to get an Uber.