I dont know if bitcoin will change the distribution of wealth in the world. All i can say is bitcoin may help some to earn more and to lift up their economic status individually. But still it depends on the motivation and effort the bitcoin member will put into to earn more. It also depends on their strategy.
Has gold changed the distribution of wealth in the world? If mean what is the link between an asset and its distribution. i dont see any connection in between because this is a common sense thing that only a man with knowledge or money can buy bitcoin so how bitcoin is supposed to get into the pockets of those who dont belong to any of the previously mentioned types. It has provided job opportunities to jobless people. What more should it do?