Now people don't know each other even if their houses are next door. There were fewer people in the old days, so each could have a lot of land. But then the parents divided and divided the land among the children. Since each has less, they are greedier now. A lot more people don't own any land.
People live along the canals, in slums.
There are too many people to be generous. Some people, even if they have a lot of money, want more money. I like America. If you make a lot of money, the government takes tax and gives to charity. But investors in Thailand just own things and keep profits.