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

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.

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.