Boeing is listed in more or less the same conditions. Google is listed and they have strong links with political parties. edit: the more direct answer is that

Boeing is listed in more or less the same conditions. Google is listed and they have strong links with political parties. edit: the more direct answer is that the shares that are listed are free and publicly tradable, there exist other shares that are not available on the marketplace, like Facebook. But those shares are owned by state entities.