Most people who define themselves as having a BS in bio (as opposed to it merely being a stepping stone) work as lab techs ranging from $10/hr pharmacy techs up to maybe $25/hr at a med testing lab in an expensive cost of living area. At least in the old days. Currently, probably near half end up as waitresses and bartenders, completely out of the field.
Most people who get a BS in computer science (not as a stepping stone to a PHD or whatever, etc) end up on helpdesks, maybe pulling cable or replacing mice, not doing anything scientific. Basically like the bio lab techs, it amounts to training not education. The top 25% or so, maybe less, might get software dev jobs or maybe system/network admin jobs. Even in current conditions, most will end up in their field, maybe $8/hr no benes at a call center but at least more or less in their field. The HN crowd tends a bit toward the upper level of the pack, so yes, most HN readers have it far better than median.