‘A system that counteracts those selfish tendencies’ you mean a system in which:

• housing is not controlled by companies with no moral incentive to keep them liveable and affordable?
• people don’t learn from a young age that their value is directly connected to their willingness to fuck people over for money?
• there is no monetary incentive to create artificial deficits in essential goods like housing and food?
• the whole economy is not based on ‘cheap labour’ and the illegal extraction of minerals from other countries?