5% own 95% of the world's wealth.
Its not a conspiracy.
No, it isn't a conspiracy, it is economics. Poverty (for lack of a better term) is the natural state of existence as to gain anything, it must be created or earned in some fashion. Because of the natural state of interest growth (compounding), it is a general state that the more you have, the faster it accumulates. That doesn't mean it is denying anyone else anything, it just means that the more you have, the more you have to grow.
The question actually becomes how one acquires it. Some of the banking empires and families have grown wealthy because for centuries, they have come from cultures and families that valued education and understood economic growth, especially in times and situations where societal norms actually praised lack of education or lack in general as some sort of virtue.
On the other hand, generally those who scream about inequity the most and promise fairness usually sit upon a far greater level of inequality (as one sees in communist and socialist countries where most of the wealth is accumulated in governmental institutions controlled by an even smaller minority of political insiders). Those who are in this situation love to make the 'other' wealthy (those who have succeeded or come from successful families) the bogeymen as a way for them to take the wealth for their own institutions.
When you see screaming about inequality, especially when they throw 'them' into it (ie 'Zionist conspiracies', banking conspiracies, or old families like the Rothchilds (who don't actually own near as much as being claimed)), it isn't about true desire for fairness of wealth distribution, but by those in power wanting to acquire it for their own control and centralize the wealth and power for themselves.
The Bernie Sanders/Occupy types don't actually want fairness, they want power. Generally this is just their way of empowering their own greed when they don't have the knowledge wherewithal to create the wealth themselves.