"This would seem to confirm that there is a master plan. But why?"
Do you mean re: the WT in particular, or society in general?
The only answer I can give to the "Why" is: Their wanting to implement GLOBALISM, their One World Government, without hassle from the hordes of humans on the planet as they do so. So one way to keep people asleep while they do it is to sucker them along the way. And it's working VERY WELL as most people are still under the "American Dream" delusion that:
I live in the Greatest Country who can do no wrong.
My government only has my best interests at heart.
As do my politicians, from the local level all the way up to the Executive Branch.
People are really good and not evil.
There is no Devil.
There is no occult.
There is no conspiracy.
There are no secret societies.
There is no proof, so I can stay in denial,
So I can get a good job, a good education, get married, have a family, some kids, socialize with my friends, travel, have a hobbie or two, do some charity work, and just live live live life, and nothing will ever change, as this is the "REAL" life.
Then someday I will die and that's that.
And lots of people will come to my funeral.
etc. etc. etc.
That's basically the "dream world" most people believe in, more or less. Didn't we all at one time?
But it's not reality. NOT ANY MORE, and actually hasn't been for at least a good almost-100 years, in America at least, and longer back in Europe.