These people are modern-day court jesters.

Wikipedia:

In ancient times, courts employed fools and by the Middle Ages the jester was a familiar figure. In Renaissance times, aristocratic households in Britain employed licensed fools or jesters, who sometimes dressed as other servants were dressed, but generally wore a motley (i.e. parti-coloured) coat, hood with ass's (i.e. donkey) ears or a red-flannel coxcomb and bells. Regarded as pets or mascots, they served not simply to amuse but to criticise their master or mistress and their guests. Queen Elizabeth (reigned 1558–1603) is said to have rebuked one of her fools for being insufficiently severe with her. Excessive behaviour, however, could lead to a fool being whipped, as Lear threatens to whip his fool.

One may conceptualize fools in two camps: those of the natural fool type and those of the licensed fool type. Whereas the natural fool was seen as innately nit-witted, moronic, or mad, the licensed fool was given leeway by permission of the court. In other words, both were excused, to some extent, for their behavior, the first because he "couldn't help it", and the second by decree.

Distinction was made between fools and clowns, or country bumpkins. The fool's status was one of privilege within a royal or noble household. His folly could be regarded as the raving of a madman but was often deemed to be divinely inspired. The 'natural' fool was touched by God. Much to Gonerill's annoyance, Lear's 'all-licensed' Fool enjoys a privileged status. His characteristic idiom suggests he is a "natural" fool, not an artificial one, though his perceptiveness and wit show that he is far from being an idiot, however "touched" he might be.

Eye of Horus: https://www.youtube.com/watch?v=4NLhqU0EboM