For Ahri, not eating people is more about her than the people. It measures the strength of her will, the wisdom of her interactions, the fidelity of her path to the one forged by her ancestors. Which in most respects would probably not be the most comforting thing to know, but Vikala might (lol) find a silver lining: it was not a motive that depended on her potential meals being useful.

Also, Shoulder Braum would probably be disappointed. There's that.

"I can see that." Probably not the words you want to hear from your stalker, but Ahri's laughter is warm, a sound to unbind knots, allay fears, and invite all who share it into each other's confidence. Just so long as you don't think too hard about all the possible reasons a monster would be able to make a sound like that on demand.

"Luckily, you have someone to follow."