Copyright and trademark are just tools to be used by those who can. Case in point --- Apple uses any music they want in their TV commercials and never pays to license it. Apparently, in their opinion, the artist deserves nothing more than the opportunity to benefit from increased exposure. I suppose that's why they pick more obscure music (CSS).

Another interesting point is that, for some time now, movie distributors have used the FBI seal without licensing it. But that seal sure makes the video piracy warning look official! http://www.sonnyboo.com/images/tips/FBI.jpg