Why do companies want employees who have good public-speaking skills

To have happy consumers and welcoming them so they can come back knowing that the company has really good customer service and which is a huge thing in owning a business. If you can communicate to your consumers then its pretty bad.

The company has lackluster leadership and therefore won't do well in the future; The organization is wasting my time; I should look elsewhere for another job; This company is an embarrassment and it doesn't deserve my best efforts. You don't want employees concluding these kinds of damaging things.