yitayningwut, There is a difference between that (the example you cited of him going above and beyond the law) and eating Cholov Yisroel. CY is the default position and the l’chatchila. CS is a “heter”.
And anyone can work on himself becoming a Baal Nesfesh, even if he isn’t a Baal Nefesh yet. One thing towards that goal, is to only eat Cholov Yisroel.