We have a moral obligation to obey the law. However, you are free to raise objections to what you may find offensive, bogus, predatory, or borderline schemes. Technology and society change so fast that they may leave the law in the dust.
Many people questioned the legitimacy of direct marketing companies that targeted their elderly parents with phone calls telling them they were either a finalist or had already won a sizable amount of money, telling them to be at home and expect local media to be present.
MLMs or pyramid schemes get a lot of attention as a shaky industry. These businesses involve selling products to family and friends through person-to-person sales and recruiting others to become part of their network.
Like life coaches, some are experts in their field. However, there was heavy criticism for those sharing fake success stories that weren’t motivational lessons but someone who walked around a room with a mic.
Televangelists are either official or self-proclaimed ministers who preach to TV or radio audiences and appeal for money. Many have been embroiled in one controversy or another, like the jet-setting Kenneth Copeland who defends his private jets, or others who have fancy watches or cars.