Someone who wilfully ignores immoral actions/practices because to do soemthing about them would inconvenience them.

If you wilfully disobeyed the payment of a court-ordered judgment you could possibly wind up being jailed for contemopt of court.

You could say someone is being wilfully ignorant if they are reluctant to know or learn about something for any particular reason be it due to beliefs, fear of the unknown or uncomfortability

Most likely, no. But if they are willing to cover a teen with that kind of trouble, it will be expensive.

I wonder if you are thinking of J. G. Fichte? His Reden an die Deutsche Nation (1807-8) are intensely nationalistic and frantically, frenetically and hysterically anti-French. These speeches are also wilfully ignorant.