No, it's not remotely.
They are no more responsible than the counterparts to the loan.
Every loan a bank makes comes with risks to the bank.
This idea you have about what is a 'productive investment' or not is fairy interventionist.
Who are you to say what is productive, and what is not? When someone buys a building to lease out flats, is that not productive?
If you believe that there is clearly such a thing as 'non productive assets', for example, pure real estate speculation, then it's the fault of those speculators for the speculating, not the banks.
The banks make the loan if the collateral and risk line up - that's what they do.
They are not in the business of deciding what is good for the economy overall, nor should they be.
Finally, that banks create the money is not 'obfuscated' moreover, the amount of leverage in the system is actually controlled by the central bank by setting reserve requirements.
I suggest there's a lot of misunderstanding in our comment.