The distribution of wealth should be larger than other platforms. That makes the platform has value. When wealth distribution is among few circles, new members are like begging for upvotes for the whales. That is not ideal model.
When more wealthy accounts exist in POB, earning from hive is widely open for new members that start from zero power. As we know that most new members are starting with zero power. They join to earn. if they have no wide opportunities in this platform, sooner or later, they will leave this platform and the tokens will have no value in the market.