E.g., could we create a FuckYouMazda corporation, whose sole purpose was to develop this software. And if Mazda successfully sued for copyright damages, the financial liability is limited to the corporation's assets?
Knowing, deliberate actions of criminality are sufficient to piece the corporate veil.
However, a person is generally liable for his own torts regardless of corporation. The shareholders might not be liable vis-à-vis the corporation, but the actual programmers and managers doing the infringement could likely be sued individually the same as if they weren't working for a corporation.
I.e., the alleged violations are civil rather than criminal, and a reasonable person might believe Mazda's DMCA claims are unjustifiable.
You could sincerely believe that murder was ok, but that's not going to change how the law would view you murdering someone.
The idea around "piercing the corporate veil" is that you can't just slap a company in front of your actions -- regardless of whether or not you believe your actions are justified or legal -- and avoid legal consequences.