The classification of drugs involves many issues besides its harmfulness — the social context is important.
But the ACMD's job is explicitly to consider social implications of drug use. That's why of the 28 members listed here:
- 6 are police or probation officers or judges
- 8 lead drug charities or work in social work
- 7 are medical doctors or vetinarians (one vet and one dentist!)
- 6 are what we might normally call "scientists" (3 psych and 3 chemists)
- 1 is a school inspector
(The 3 resignees are 2 pharmacologists and 1 medical doctor iirc).
As you can see, the council is already made up of several members whose job is to investigate the social effects of substance (ab/mis)use. To claim otherwise is to either not do your homework or be deliberately misleading.
Dispiritingly, I presume that the media simply can't be bothered to check their facts properly.