Harry wants nothing to do with the royals, but he still wants royal privileges not offered to non working royals.
What he really aims to get by suing Ravec, is International Protected Person status. This is his endgame. That would mean that any country he goes to/lives in, would need pay for his personal security.
Personal security is hugely expensive, especially for non royals who want to globe trot and play at being royal. Big security,motorcades and car chases, also makes one look ever so important.
I could well believe that Harry, or his wife more likely, deliberately tipped off every possible pap known to man, to deliberately recreate a Diana car chase situation, in order to win that court case.
The timing of this is a little too convenient to be pure coincidence. No one in the US cares that much about H&M. His mother also used to call paps herself, when it suited her. That didn't end very well for her.