Costco could easily triple their cost of their hotdogs and still be cheaper than everyone else. They don't because they know it would be foolishly destructive to their reputation in the long term.
Seems a couple of concert tours were canceled this summer, largely due to failure to sell inflated ticket prices. Popular performers/bands with established fan bases that could almost surely support a modest tour, instead everyone is angry and disappointed and there's no tour at all.
Where a profitable company increased its profits, via actions that later lost customers and profits?
(The historical cases that come to mind for me of are companies that were already in the red, trying to turn it around.)