The terms of service you agreed to when you signed up for twitter determined that was a lie. People say all sorts of things that aren't true, especially in the business world. If you're taking people at face value, that is your problem, not mine.

Twitter is a business and it literally has nothing to do with democracy at all. Using twitter is a personal choice, if you don't like it, don't use it. That's the solution. Your perception of their business being negative or even positive is neither here nor there.