I think they spread wrong message or the message is missunderstood. What they meant is do not get attached to material stuff. You can be billioner, spent money for charaties but not interested in money itself.
There are many rich people in bible who owned a loooot of cattle and were considered rich and had slaves to work for them. And they were seen as good people because they were good to their servents and money the had wasn't used like today for traveling, jewlery..
_________________Cole: "Phoebe I would do everything for you but don't ask me to be a coward".