Well, this article is a few months old, but I don't think the total wealth of the world has changed much. According to that article, the total wealth of the world is $280 trillion dollars, and according to worldometers.info, the total population is 7.6 billion. This means that if wealth was distributed equally, each person would get $36,842.
According to this article, the distribution of wealth is highly unequal, with the richest 36 million people (around 0.7% of the total population) owning $128.7 trillion, which is nearly half of the world's total wealth. The pyramid shown above, shows fully how the wealth is distributed. You can see that 70.1% of world's population own less than $10,000 each, 21.3% own between $10,000 and $100,000 each, and only 7.9% own between $100,000 and a million each.
So, we can see that the capitalist system followed in most parts of the world, has caused highly unequal distribution of wealth. The problem with capitalist system is that it tends to create oligarchies and monopolies. That is why I think, decentralization and cryptocurrencies are so revolutionizing, as they tend to give power back to the people.
Fun fact
At this moment, according to coinmarketcap, the total market cap of all the cryptocurrencies combined is around $342 billion. This means that cryptocurrencies just make up 0.122% or 1/820 of the total world's worth. Moreover, if cryptocurrencies were distributed equally among people, each person would get $45 (0.005 BTC) worth of cryptocurrencies.