So long story short. You can fleece the banks and local businessman all you want. Try it on with Denis O Brien and he will f*ck you so hard your ears will ring.
I'm not sure about the local businessmen, but in the case of the bank you go along and put your plan to them and they decide to loan you money or not, there is not necessarily any deceit involved in that particular transaction. Poor judgement, and negligence on the part of the bank, but not deceit.
The cancer lie is something else altogether.