If you mean the union reps have better pay than the workers that is true of most unions. BUT, their pay is not even close to the employer's executive /CEOs - and unions are rarely top heavy. Our union negotiators were so talented and knowledgeable - they often knew more about our jobs than we did.
I did not recognize the organizers of the starbucks employees and wondered if there were some new start-up union efforts - do you know?