If they are involved in Child Trafficking -- I consider that a monster.
So if a Social Worker goes into the situation assuming that the parent is guilty, and refusing any evidence to the contrary of their pre-conceived opinions ... then rents or sells that child into foster care or adoption -- they are abhorrent and anti-family and anti-child. They are supposed to protecting children -- not ripping them away from loving families and placing them in abusive Foster Care homes.
Now if there are Social Workers that actually evaluate all evidence, and don't assume guilt right off the bat -- and try to keep the child with parents whenever possible, or at least with another family member -- that Social Worker would not be a monster.
However, from what I have observed, the system is stacked to hire and/or create monsters.