Paying a bunch of criminals is no solution. If you pay them once, you will give them incentive to continue doing so. Plus you don't know if your files will really be decrypted after paying.
As I said, in this case we know that the files won't be decrypted even if you pay. Infections created by more professional criminals will frequently release the files if you pay.
Some have no other way - they have to pay. Special. If the computer on which all information for work is stored is infected. The guide will not understand your explanations that the computer is infected. They need the result