every kind of organised criminal is created if the goverment leave knowngly or unknowngly door open for them.
like,unregulated ways, every criminal will bring police state around the world closer and closer.. if those criminals dont taste that
totalitarian police state thierslefes then their kids will feel this very well what  their fathers has done
and if their fathers did not save enough money for their kids from criminal activities then their kids will be in  big trouble..couse there will  be no more criminals existing in the future world at all.
but best way to find out for what was exacly purpose to create bitcoins is to ask from person who created bitcoin.