Religious extremism specially Abrahamic ones because they(all) believe in gospel truth, Despite all the evidence. They also want to enforce laws based on gospel truth. While greedy can be reasonable.

Greed as in people that abondon all morals for material and money.

Its called materialism and is related to Philistinism

Schopenhauer defined philistine as

he is a human being without intellectual needs. Several things follow from this: first, in respect of himself, that he remains without intellectual pleasures, according to the already mentioned principle: ‘There are no true pleasures without true needs.’ No keen urge towards knowledge and insight for their own sake animate his existence, nor one towards actual aesthetic pleasures, which are definitely related to the first urge. Such pleasures as are imposed on him by fashion or authority, he will dispose of as quickly as possible as a kind of forced labour. Real pleasures for him are the sensuous ones alone; in them he finds compensation. Accordingly, oysters and champagne are the highpoint of his existence, and the purpose of his life is to acquire everything that contributes to bodily well-being. And he is lucky enough if this purpose keeps him busy! For if those goods are already conferred on him in advance, he will inevitably fall prey to boredom, against which all possible means are tried: ballet, theatre, society, card games, gambling, horses, women, drinking, travelling, and so on. But all of these are not sufficient to ward off boredom, when a lack of intellectual needs makes intellectual pleasures impossible. Hence a dull, dry seriousness, close to that of animals, is characteristic of the philistine. Nothing delights him, nothing excites him, nothing rouses his interest. For sensuous pleasures are soon exhausted; a society made up of philistines just like him soon becomes boring; card games finally become tiresome. At most, he is left to enjoy the pleasures of vanity in his own way, consisting in his exceeding others in regard to wealth, or rank, or influence and power, by whom he is then honoured, or in associating with people who excel in such things and thus basking in[366] the reflection of their splendour (a snoba). – From the fundamental qualities of a philistine we have described it follows secondly, in respect to others, that, since he has no intellectual, but only physical needs, he will seek out the person who is able to satisfy the latter, not the one who can satisfy the former. Hence among the demands he makes on others, the least will be that of predominant intellectual abilities; on the contrary, if he encounters these, they will arouse his dislike, even his hatred, because in reaction to them he has only an annoying feeling of inferiority and, in addition, one of dull, secret envy. This he carefully hides by trying to conceal it even from himself, which is why it sometimes grows into a secret rage. Therefore, it will never occur to him to measure his appreciation, or deep respect, in accordance with such qualities; this is exclusively reserved for rank and wealth, and power and influence, which in his eyes are the only true merits in which he wishes to excel. – But all this follows from the fact that he is a human being without intellectual needs.