In reply to robhorton:
> I don't work in finance and it's entirely possible I've misunderstood the seriousness of his crime but giving him a sentence roughly equivalent to that for committing an armed robbery or GBH with intent does seem a bit excessive.
For all that robbery and GBH are terrible for those involved their overall impact, in almost all cases, is actually very minor as it's isolated to very few individuals.
In the case of financial malpractice there are still victims, in cases like this there are potentially huge numbers of victims, and those victims still face very real consequences. It's pretty much impossible to calculate the equivalence of victim-hood when it's been abstracted away like this - but if just one business folded or one home was repossessed that wouldn't have been* somewhere down the lines as a result of his actions then the suffering inflicted could easily exceed the crimes you mention.
*I have no idea if this has happened in this case but the point is that paper crimes can have victims too.