No one can damage anyones honesty or integrity, what a silly thing to say, it either exists or does not

Lux has been accused of defacing the posters of Madeleine. The McCann's have been accused of faking an abuduction and hiding Madeleine's body.
Someone could produce the e.mail that Lux sent, showing Lux of being guilty of defacing the poster's.
The McCann's cannot produce the abductor.
Nothing was proven against the McCann's.
Now if Lux was taken to court and it was proven that she/he didn't deface the poster's then this person's honesty and integrity has been restored, proving that all along this person was truthful.
Amaral wrote a book accusing the McCann's of faking the abduction and hiding Madeleine's body. Also of giving the children calpol to sedate them. Saying that they did do this, even though the McCann's have said all along they are telling the truth, that he was wrong they didn't do this.
Many many people would believe what Amaral has written as he was the co-ordinator of the case, he was respected as a senior officer. Many many people would be saying the McCann's have not told the truth.
If Amaral loses the case then surely the honesty and integrity would be restored in part as some would say 'maybe they were telling the truth after all' Amaral wrote this book and nothing was proved.