Generally a company doing something bad enough to encourage a large enough boycott to affect the bottom line is making quite a bit of money. They calculate the loss of sales due to the boycott over time and can plot when the value of the bad business is lower than the boycott. Many times they continue with the bad behavior in spite of loss of business from the boycott because the business might be at the edge of viability anyway. So extracting the last bit of value out of the company is a net win before the rotting husk is sold off in pieces for the value of its assets or the brand is sold to the opposing group that actually likes the bad behavior that was being boycotted so it becomes an asset again.