The skills learned in a business administration program, in themselves, are useless for actually creating a product or service to sell or practicing some field (e.g. law, medicine, etc.). The skills taught in such programs instead are about destroying value by trying to milk everything as much as possible, i.e. maximize profits at any cost. This results in dumb short-term thinking - do everything possible to maximize profits this quarter, who cares if the customers leave next quarter. This is why I call them parasites.
Someone might say, "well, isn't that a useful skill in itself, the MBA and [CS|whatever degree] can work together." I disagree. In order to be in business, you need to have something of value to offer in exchange for people's money. Business administration is about sucking value from other people's work.