Can someone explain to me why public relation is more important for organisation today?

Why is Public Relations Important?

At its core, public relations revolves around this universal truth: people act based upon their perception of facts. By managing, controlling, or influencing people's perceptions, public relations professionals hope to initiate a sequence of behaviors that will lead to the achievement of an organization's objectives. When those in public relations successfully create, change, or reinforce opinion through persuasion, their primary objective is accomplished.

Hopefully this helps, taken from the website "worldwidelearn" since I couldn't post links.