The second option would undermine the integrity of the Act and could lead to a raft of changes which finally bring the concept of relative harm into the discussion, potentially lifting the ban on the huge range of mostly benign plants which became illegal to sell on May 26th. (politics.co.uk)
«[T] he revelations are important because the debate about the relative harms of sugar and saturated fat continues today,» reports the Times. (organicauthority.com)
Also, their relative harm effect is quite constant (e.g. murder is worse than theft). (politics.stackexchange.com)