In January Pizza Patron (Dallas-based company) began accepting Mexican pesos.
The company's goal was to sell more pizza to its Latino customers. But the company's action attracted public attention. The promotion has been a boon to the company. In January and February sales were up more than 35% compared with the same period last year. The experiment in pesos was to end in February, but then the company extended it through April.
I am not arguing the controversy of using foreign currency in the United States. The very fact of using foreign currency points (in the public judgment) to some broad-mindedness.
So, the PR move for various social, ethnic, racial, national, religious, linguistic, or cultural groups / communities is to present your image to these groups as tolerant & broad-minded.