Looking for advice on sharing food during Ramadan

As Ramadan began, my mother asked me for some extra money to help feed those in need for Iftar. This isn't my zakat or her personal expenses-Allah has already blessed us with that. It's just an extra bit of sadaqah because helping others makes my mom really happy, and I wanted to support that good intention. I made it clear the money was only for the poor, and she promised to use it that way. Here's why I was careful: last Ramadan, when we prepared Iftar packets for the needy, about 30% ended up going to my uncles and aunts, who are actually quite well-off. It was tough because there were still so many people struggling who came asking, but we'd run out and had to turn them away. This year, I'm traveling, and my mom wanted to do something similar. I agreed, but only if every bit of the money I sent went strictly to those truly in need. We both said it's better to send the funds to Gaza than to feed our own family who already have plenty. Then, today, my brother sent a picture showing small food boxes packed for the poor, while 6-8 much larger boxes were set aside for family-going to those same well-off relatives. It looks like maybe 70–80% for the poor and the rest for family, which doesn't sit right with me. I believe if we set aside money with the niyyah (intention) of helping the poor, it should go only to them. If we want to share with family too, we should plan for that separately and add to the budget. My mom feels that if you're preparing food for the poor and even your wealthier relatives find out, you should give them some too. There's definitely some family bias at play here. So, what's the right approach? If one of us is mistaken, insha'Allah we'll seek forgiveness from Allah and do better next time. Jazakallah khair for any guidance!