The DoJ reached settlements with 8 different companies and there was a civil penalty too. Whether the repercussions were enough is a valid question, but Jobs was dead by the time the civil action was ruled on and on medical leave when the DoJ settlement in 2011 took place, so it’s hard to play a “what if” game here — especially since these lawsuits and DoJ investigations (correctly) caused tech companies to have to change their policies.
But Apple’s egregious no-poach agreements and collusion with other companies to do the same didn’t cause Palm’s collapse. And being able to more easily hire Apple employees wouldn’t have saved Palm.