God would have done that himself from the get-go if that were the principle concern. The goal is for us to do the one thing which God cannot do for us, which is to choose freely to love each other, to live as family. That's really about all there is to it. Unfortunately though, for the last two thousand years, this basic idea has been twisted beyond sense and reason by the following seven theses. The rich support charities.
Luxuries support the economy.
If everything is given away, nothing is left to help. Trying to help people can actually hinder them. Christians have different callings, some to wealth, some to poverty. There is nothing wrong with the rich, or with riches, as long as they don't put those things before God. The rich are the ones who give to charities and support the building fund.