Your last paragraph hints at another reason that you didn't explicitly mention: if the shareholders support green policies, they can vote for board members who support them too. (money.stackexchange.com)
All the rooms are designed to stay in line with the resort's green policy while giving the guest complete comfort in natural surroundings. (kochangisland.com)
The energy revolution is a game - changer, surely, and political support for restrictive green policies and wasteful subsidies is declining. (firstthings.com)