@Milzy.
There is a difference between a shareholder and a director.
A Director might or might not be an Office Holder with or without a shareholding, there are multiple options.
A director is a person in charge of running the company. They may own shares they may not and they may or may not be an office holder, they could be an employee with significant influence.
A shareholder is a person or entity with an interest in a company. Usually shares. Depending on the amount of share held they maybe considered to have significant control (broadly minimum 50.1% ownership)
An office holder is a person who’s been appointed to a position by a company or organisation for a position that exists because it’s a legal requirement or contained within the companies constitution. They may not not have a contract or receive regular payments either.
As others have stated, PIP is a payment designed to help with independence, it isn’t a means tested benefit. It is a payment designed to help towards extra costs that might be incurred such as a having meals delivered as unable to cook etc.
The scenario of a sleeping director is potentially legal. The coercive and abusive behaviour is a concern that should be dealt with accordingly.