How does symbolism influence audience decision-making?

How does symbolism influence audience decision-making? How aware is the audience of this influence? Identify a campaign that has used symbolism to influence audience decision making.

A 300 word post focused clearly on the question and using in-text citations with a reference section at the end.

Please refrain from reference, grammar, spelling, or punctuation errors.

You may cite outside sources.

Also, make sure researched sources are recent, published no less than 5 years ago.