The only shareholders in a co-op are the owners/operators ("employees"), or the owners/operators + customers (for example REI I believe). There's nobody seeking to extract value at the expense of the employees or the customers.

If, as a shareholder operator, a co-op member pressured themselves to exploit user data to turn a quick buck, I guess that's possible, but likely they'd be vetoed by other members who would get sucked into the shitstorm.

In my experience, co-op members and customers are more value-oriented than profit-motivated, within reason.