Well it depends you see
Imports
If one imports at 5c with local equivalent at 15c and sell both at 500c it doesn't really matter to the taxman or the banks. It matters to the local people but it will not reduce returns to people that make decisions.
SMEs
Going on the dole might be one thing but if my observations are 'owt to go by then very few people will choose to exist as honorably poor or decent poor and try to make income up by indecent means (watch the crime figures for the timeline instance when credit folly became a pained experience). This is also a folly of the Tories as they usually do not cost in consequences elsewhere in society and usually attempt to balance things out by a "purge on crime" that really is more about balancing the books because of systematic oversights and errors of base assumptions.
Why? Speculation 1
Company 1 is approaching its year end with anticipated losses of 250c.
Company 1 borrows 750c in month 11
Company 1 now produces a year end with 500c profit rather than 250c loss as loans are not factored in
The great and the wise in Company 1 decide they must have made a mistake about 250c loss as the books definitely show a 500c profit so spend part or all of the 500c profit.
Later on Company 1 discovers it's projected 250c loss was indeed accurate but now it has increased to 750c loss as, in fact, the loan of 750c has been spent twice.
Why? Speculation 2
1 - Joe places 10c with his bank in a savings account
2 - Bank takes joe's 10c and hands it over to its hedge fund managers
3 - Hedge fund managers invest Joe's 10c
4 - Hedge fund managers are approached by another hedge fund manager for short term loan at agreed interest rate so lend Joe's 10c to this new bunch of hedge fund managers.
5 - repeat stteps 3 and 4 a few times remembering accounting anomalies in Spec 1 above.
6 - some time later Joe says "Hey! I want by 10c!" But the bank and it's hedge fund managers have used Joe's 10c 50 times and none has been paid off (might have made a loss, a small return or broke even but these have been offset because hedge fund managers extract a percentage of this for merely handling Joe's 10c)
7 - the bank loses 700c because Joe asked for his 10c back
Now that is probably the reason the whole of the western world is reeling. That or somethings like it. It ain't the public. it is wholly the finance sector.