I think it is actually a good idea. The pharmaceutical industry has always had to go through rigorous testing of their products to ensure its safety and efficacy. 90+% of the compounds tested never make it to market because it fails in some phase of testing, either because it is unsafe, not as effective as another product, or because it doesn't treat the disease as intended. Herbals and vitamins on the other hand have never had to be tested. You can't say that they are safer if they have never had to undergo testing to find all possible side-effects. Also because they have never been tested, the effects are usually based on anecdotal evidence which may or may not be true. And even if true, the anecdotal evidence doesn't specify the amounts needed nor other contributing factors (genetic makeup of the individual, environment, other compounds that may have a synergistic or adverse effect, etc.).
The pharmaceutical drugs are also strictly regulated by amounts of the active substance present in each serving, amounts prescribed and/or used, and activity strength over the course of time (as in when the medication is expired). Herbals and vitamins do not have these regulations to contend with. As a result, some herbal manufacturers will put in more filler than active ingredients, or do not know exactly how much of the active ingredient is present. Furthermore, it is easier for people to either not take enough for the ingredients to have an effect, or take too much and be exposed to toxic effects of the substances. There have been cases of people getting poisoned because they thought they'd be healthier by taking some supplement, and didn't realize that they were approaching or had exceeded the toxicity level. For example, there are several cases of selenium poisoning by people taking too much either willingly (as in taking too many supplements) or unknowingly (as in the manufacturer added too much selenium to the supplement:
http://www.medscape.com/viewarticle/716598).
If anything I think that herbal / vitamin manufacturers are the ones more concerned with money at our expense by
not wanting to be tested with the same rigors that pharmaceuticals have to go through.