Are wanderers still needed and if not, why did we come here?

[GentleReckoning]

I started typing out replies to your questions several times, but as your questions essentially run the gamut of how reality works it is difficult to answer.

The knowledge of the negative is that which was outside of the bounds of the initial Ra contact. That being the freedom to challenge authority. The freedom to be happy. The freedom to order one's life. These freedoms destabilize all current societies (except for a libertarian society lol!), as you have to challenge that which holds you to grow beyond those limitations. And as Ra was seen as an authority figure coming through a very fragile channel (notice the channel became more and more fragile as the contact continued...), there was little to no challenging besides a typical christ challenge.

And as we have seen through history, the christ body is capable of creating much density and confusion.