You certainly can influnce a company - it is called being or not being a customer. There is no such opt out option for government as much as sovereign citizens may believe otherwise.
Let's be optimistic and assume 10% of the population is informed and passionate enough about a company's wrongdoings to boycott it. That company is still going to thrive just fine on the business from the other 90%. Holdouts alone won't stop it from accumulating power and reach.