Finances at Saatchi & Saatchi Advertising Eric Corte, a representative from Saatchi & Saatchi, a prominent Advertising Agency, talks to Loyola University New Orleans students about music in advertising. In this segment he discusses the income generated by advertising agencies; how ad agencies make their money and how they spend it. Corte gives a rough estimate of what it costs to buy music for ads and the importance of media buyers.