Are you saying that they are not greedy?
What version of the Bible do you have at your house? Your assertion is clearly incorrect, and is not supported by the text itself. Here's some background information to help clear things up some.
:) ttt
Genesis 18:
And the LORD said, Because the cry of Sodom and Gomorrah is great, and because their sin is very grievous;
I will go down now, and see whether they have done altogether according to the cry of it, which is come unto me; and if not, I will know.
[...]
Genesis 19:
But before they lay down, the men of the city, even the men of Sodom, compassed the house round, both old and young, all the people from every quarter:
And they called unto Lot, and said unto him, Where are the men which came in to thee this night? bring them out unto us, that we may know them.
And Lot went out at the door unto them, and shut the door after him,
And said, I pray you, brethren, do not so wickedly.
Behold now, I have two daughters which have not known man; let me, I pray you, bring them out unto you, and do ye to them as is good in your eyes: only unto these men do nothing; for therefore came they under the shadow of my roof.
And they said, Stand back. And they said again, This one fellow came in to sojourn, and he will needs be a judge: now will we deal worse with thee, than with them. And they pressed sore upon the man, even Lot, and came near to break the door.
Deuteronomy 4:
Speak not thou in thine heart, after that the LORD thy God hath cast them out from before thee, saying, For my righteousness the LORD hath brought me in to possess this land: but for the wickedness of these nations the LORD doth drive them out from before thee.
Not for thy righteousness, or for the uprightness of thine heart, dost thou go to possess their land: but for the wickedness of these nations the LORD thy God doth drive them out from before thee, and that he may perform the word which the LORD sware unto thy fathers, Abraham, Isaac, and Jacob.