What did atticus accomplish during the trial although they lost?

The question brought above is from the story of ‘To Kill A Mocking Bird’, although Atticus didn’t won the fight or battle, he was able to accomplish of having to defend the rights that he is fighting for and a way of having to show his efforts in a manner of helping his friend Tom Robinson that died.

b. they tried to evict the squatters from the area.

so sorry if wrong