From your lifetime perspective, you are doing the right thing 
Same for you.
What happen after all of us die, is irrelevant
What happen before our birth, is also irrelevant 
unless you believe in cryonics
Civil liberties or personal freedoms are personal guarantees and freedoms that the government cannot abridge, either by law or by judicial interpretation, without due process. Though the scope of the term differs between countries, civil liberties may include the freedom of conscience, freedom of press, freedom of religion, freedom of expression, freedom of assembly, the right to security and liberty, freedom of speech, the right to privacy, the right to equal treatment under the law and due process, the right to a fair trial, and the right to life. Other civil liberties include the right to own property, the right to defend oneself, and the right to bodily integrity. Within the distinctions between civil liberties and other types of liberty, distinctions exist between positive liberty/positive rights and negative liberty/negative rights.
My quarterly reminder to donate some to eff.
Also worth a read: