Nor made to court an amorous looking glass
...since I cannot prove a lover,
To entertain these fair well-spoken days,
I am determined to prove a villain,
And hate the idle pleasures of these days.
– King Richard the Third, Act I, Scene I
Do people really prance around delighted with their own evil? My own experience is that people who do the worst things are those most unquestioningly convinced of their own virtue. I do think this royal cloak would hide any hunchback (I have read that it may have been a war wound, not a birth defect, that caused Richard's ungainliness).