To clarify, I don't want people holding any stakes other than the equity of the company itself.

I don't want people holding stakes because they want a promotion, because their direct manager wants to launch a corporate political battle into another team, or because some salesperson wants to get a commision for an otherwise worthless customer. I don't want roadblocks in the name of security so that the IT guy has a sense of self-worth. I don't want someone trying to protect their egos around something they worked on for 3 years, when there's new tech that supersedes it.

I'm not sure you know what "stakeholder" means...? Either that, or you've had too many people use it to mean "people whose future is on the line based on the outcome of the product." That's one kind of stakeholder, but it's far from the average, and it's certainly not the most important kind.

Anyone who has to work with the product is a stakeholder. Their stake in it is the fact that they will be interacting with it, and thus they care how, and whether, it works.