There are spoilers in here. Get over it.
Most top-ten lists leave out the female characters (of which there are plenty), child characters, and characters that are more quietly menacing than flamboyant. Most sociopaths don’t want to be noticed (with the lone outlier of narcissists) and prefer to be taken for unassuming victims of circumstance. There are some of course, who commit desperate and crazed acts, but they’re less the majority than you might think.