I do the same thing and I buy socks in large batches replacing old batches. This is by far the best life hack I have implemented. My socks are comfortable, versatile and I never need to worry about pairing. I did this after literally seeing how my upright washing machine swallowed a sock between the drum and the drum container. I never took it apart to see how many lone socks are left there.
I do pretty much the same thing (although I have two colours :) Since you don't ever pair any of your socks the wear is fairly even since you are picking two random socks every morning. If a single sock gets a hole in it you just throw it out!
If you really had OCD, you would always do laundry, pull the contents of your sock drawer forward, put clean socks at the back, and only take socks from the front. Problem solved.
If you really had OCD, you would do laundry, wash your hands to avoid spreading diseases to your family, pull the contents of your sock drawer forward, wash your hands to avoid spreading diseases to your family, put clean socks at the back, wash your hands to avoid spreading diseases to your family, and only take socks from the front, after you have washed your hands to avoid spreading diseases to your family. Problem solved, if the problem has been washed, of course.
Socks that haven't been worn between the last time you've done laundry and the most recent time end up at the bottom of the drawer. So the worn socks get picked again and reworn before the ones at the bottom of the drawer. Then one week you skip laundry, everything ends up in the wash the next week and you realize that you have very different wear levels on your socks.
No because you bought them all at the same time and washed them all at once. And you did the same activity each day resulting in the same wear for each sock. If you're that OCD, you would.