A subset of stakeholder. The strict definition of shareholder would only apply to joint stock company owners and the company itself, agreed. 'Stakeholder' is used widely of anyone with an 'interest' in an 'organization' - financial or otherwise.

My use of the subset word 'shareholder' was a 'reframing'. Reframing necessarily involves changing perceptions. And thus challenging definitions.

A shareholder definition may include the following:

• The right to vote on matters such as elections to the board of directors.
  
• The right to propose shareholder resolutions.
  
• The right to share in distributions of the company's income.
  
• The right to purchase new shares issued by the company.
  
• The right to a company's assets during a liquidation of the company.

Apart from the last item, it is possible to find equivalents in the relationship of a citizen to a democratic state. It's only 'what if' thinking, of course. It happens to be useful in my line of work - it may not be in yours. Not all blind alleys turn out to be blind.

You can't be me, I'm taken