Here's why:
* Goodwill is crucial: Goodwill, or the perception of positive intentions, is absolutely essential for effective communication. It allows the audience to trust the speaker and be more receptive to their message.
* Best interests are complex: It's not always about having the audience's *best* interests at heart in a literal sense. It's more about demonstrating genuine care for the audience's needs, perspectives, and understanding.
* It's a perception: The key is that the audience *perceives* the speaker's intentions. Even if the speaker truly has the audience's best interests at heart, if they don't communicate that effectively, the audience won't feel it.
In summary: Goodwill is a perception of a speaker's genuine care for the audience, which is built through effective communication and demonstrating understanding. While "best interests" can be part of that, it's more about the perceived intention and connection with the audience.