Another one of those conspiracy theories that over looks the obvious that it would take a cast of thousands to pull off. Even in 1969, you couldn't get that many people to keep their mouths shut.
On the lighter side, I watched the moon landing live, in "living" B&W
There never was any money in going to a lifeless rock. It was about prestige. JFK decided we had to beat the Russians to it. Never been impressed by the space program myself.
IF I was to guess, I'd say the purpose is strategic. Whoever can set up a functional military base on the Moon has strategic advantage.
“When bad men combine, the good must associate; else they will fall, one by one, an unpitied sacrifice in a contemptible struggle.” Edumnd Burke