Did 'Traveller's Cheques' solve inequality before they became obsolete.  Has email solved it?  No.  Because these things weren't designed to do that.  It wasn't their purpose.  Solving inequality isn't in the remit here.  Bitcoin is not some magical cure-all which somehow fixes every problem you care to name.

It gives everyone the same sovereignty and self-determination.  However much bitcoin you hold, you have the same amounts of control over that wealth as someone else who may hold a larger quantity of bitcoin than you.  Is that not enough for you?