they are!
They are stealing all that light and not paying for it. (some day, the government might come up with a tax based on one's annual solar energy received, whether it's put to use or not.)
OK well, such businesses are not really evil. There's greed, but any business wants to make money and successful businesses are 'cheap' in what they want to expense, so that the business retains more funds at the end of the day. Solar energy is an advantage, why not?