IF
You did, so thank you for that. Most don't however.
I see your point but the goal should be to make drugs not a requirement to play effectively but to make them a temporary bonus so that comes with a temporary penalty.
What nowadays happens is that drugs are being exploited to fix a range of other issues with those classes. I read through CMasters Armor thread that shows how PEs really get fucked over armor wise. This and many other botches in the game make it seem necessary to use drugs as if they were part of the skill system.