Perhaps you need to examine the inequities which have allowed to you amass the wealth you fear being robbed of? In short, profiting off the exploitation of others, if even indirectly, shouldn’t be viewed solely as “earning things”. Further, wealth obeys a power law distribution. Always has. Does that make it fair or right?
Lastly, would you prefer to part with some of your wealth by choice or be parted with it (and maybe your life) by force when economic inequalities pass a tipping point? Regardless of morality and notions of property ownership and personal wealth, history has plenty of examples of violent revolution when the rich few neglect the many. So, rightly or wrongly, sharing the wealth may be a survival strategy, as it were.