You see...Lying is an art. There are many facets to it, but basically successful lying works like this:

You start with a massive lie. Some idiots will believe it, some will be mildly sceptic and a few intelligent ones will dismiss it as hogwash. Then you tone the lie down a bit, and those mildly sceptic ones becomes believers and the few intelligent ones who thought they knew the truth start doubting themselves and think, “OK, some of it might be true, but it is mostly bullshit”.

And so it carries on...you tone the lie down a little bit more until everyone accepts it as the truth.

See, people do not believe lies, because they have to, but , because they want to...