Why wasn't Cindy McCain sent to prison after using her medcial non profits to obtain drugs?

Cindy McCain was investigated by the DEA for using her medical non profits as her own personal drug stores, often firing doctors who refused to give her the drugs she requested. After the investigation, Cindy ended up with a slap on the wrist and spend some time in Betty Ford. Do you think she would have received the same treatment if she wasn't a billionaire?