Zain was lucky, or not. Did he want this? No. But was he required to do this? Yes.

in this universe, the hierarchy goes by

Omega>Beta>Alpha.

Why? Because our species evolved to in a way that favored Quality over quantity. An omega could only make 1 baby every 9 months but an alpha could make hundreds in just a year.

With omegas being at the top of the hierarchy. Ofcourse they had the better healthcare and products more aligned towards them and less alpha-inclusive so when the great alpha virus started no one was prepared. Alpha's went from dirt common to only 1 in 10,000 people are one. From a population of 4 Billion alpha's to 800k~400k!