Everyone is born with a set of genes (traits such as intellectual, spiritual, physical...) and a set of circumstances (parents, birthplace, time...) that will heavily influence their outcomes.
In short, Life isn't fair nor equitable, and never has been.
Bitcoin doesn't claim to be perfect, nor does it aim to fix all the problems in the world.
However, human societies have risen mainly through production, commerce and communication, and all societies (so far) have fallen when one or several of these actions have stopped working.
Money is the underlying medium used by humans since the dawn of time, before languages, religion, nations and politics. It is the universal language, thus it underpins production, commerce and communication.
Money is utterly broken today, because it is printed by a few for their own benefits, at the expense of the many.
And that's why today everything is breaking down at an alarming rate, and the wealth gap between the many "poors" and the few "richs" is getting wider, because however long and hard the many will work, their purchasing power can't keep up with the pace of the money printing by the few.
Bitcoin would fix most of the world problems by removing the ability to print money, thus reducing the purchasing power gap between the many "poors" and the few "richs", and allowing people to benefit of the technological improvement of the means of production to live in deflationary societies again.
It still wouldn't make Life perfect and equitable, but it would make Life much fairer and much more equitable by an order of magnitude for the vast majority of people in the world.