More likely the "consultants" will handle the decryption process, and the company's own engineers, who are probably already shell-shocked and under huge pressure, will be told to just be thankful that the experts have secret, proprietary technology to deal with the ransomware. Even if the engineers want to be whistleblowers (at the risk of sacrificing their own jobs/careers), it'll be pretty hard to get enough conclusive evidence that a ransom was paid.