What is the reason that magic tricks don't get revealed/their workings are not wide-spread known to the public?

There have been television programs on the revelation of magic tricks although I have never seen them myself and I don’t know if spectacular tricks were being revealed in those shows, but still, I have the idea that the public has no knowledge on how tricks work.
Compare that to most other things that need to be kept secret; political decisions (before they are published), policies, celeb rumour/gossip, etc.
Maybe Freemasonry (the rituals) is one other that is kept secret through the centuries.
Can anyone shed some light on why it still is well kept secret, the magic trickery?
And while we’re at it, does anyone know how a certain trick works?