I know that share value is what drives the enshittification. But realistically, what's the role of a regular shareholder in the management decisions? How do the

I know that share value is what drives the enshittification. But realistically, what's the role of a regular shareholder in the management decisions? How do they control or even influence such decisions? How do you become criminally liable of management decisions if you buy their share expecting its value to grow? Pardon my naivety. I'm ignorant and curious about the power dynamics at play here.