Like all sales interviews, pretty strange. They dont want you to sell any products of them for real, they want to transform you in a liar with no morals, you get put in artificial environments where you have to save yourself out of many very strange created situation. The only way you can pass them is to lie exactly right and do the same on collegues as they have done upon you. No remorse. They want to be able to trust you to do whatever for them no matter how strange and to pass all there tests for it.
When you pass the years of "initiation" they put you into good positions of the company or in parnering companies. (could be a route, there are also many other routes and applications) Not to good tho because lesser positions is where you are worth the most for them.