Because most of the companies persuade you and make you thing that Is cheap by saying "Only" and make you thing you would use that product In your everyday life by the Ad video.
They are made up of big groups
It brought them harm because they expected Hitler to be satisfied and they believed that if they gave him what he wanted that he wouldn't cause a new war and wouldn't bother them. This is why they didn't prepare for what he did when he started the war and why France was defeated so fast and couldn't do anything about it and why England became locked out of Europe completely until the arrival of the Allies.
A. Not vote on it! I hope this helps!!!