I think that with Justice you are looking at decisions made - sometimes in your favour and sometimes not - someone will feel like they didn't get what they deserved. You don't say which 3 aces so here is my take on all of them. Aces talk about new paths and beginnings but also as the first card they are about the number 1. So it could be referring to 1 person getting one thing and the other getting something very different.
Justice with Ace of Pents - could be about the money involved with Justice
- Lawyers get paid for their services and sometimes they are the people who benefit most from others seeking Justice.
- or it could be some sort of payout sum or compensation money.
Justice with Ace of Swords this one could be about hard decisions, the truth, something that can't be argued against. It has the feeling of 'Justice being done'. It could also be about a contract with a signature, an agreement that spells out committments responsiblities and consequences.
Justice with Ace of cups I think these two oppose each other - Justice is supposed to be based in facts, truth, right and wrong, It has very little to do with emotions, and making exceptions based on feelings. It could be about not having something that should really be yours because someone else sways or manipulates things with emotionally based pleas. It could be about the emotions that need to be dealt with as a result of an unfair decision.
Justice with Ace of Wands This makes me think of carrying a torch, shining a light on something that isn't just, and rallying others to a cause.