My brother broke her heart and I called him out. Was I wrong?

This might be a bit long, so beware. (Also it would look nicer if eve allowed me to use paragraphs.) ---- A bit of backstory: My brother is a total womanizer, he always has been. He's had several girlfriends and FWB's that he is sort of notorious in our small town. A few years ago, he was dating a girl who was a total sweetheart (that's his "type"). She had a good job, she was doing well, came from a great family, and we all thought he was finally going to settle down with her. Let's call her K. After about 6 months of dating my brother, K announced that she was pregnant. My brother seemed so excited! The baby girl came, and she had ALL of us wrapped around her little finger. After the baby turned one, my brother ghosted. He and K had been fighting, and she had suspicions that my brother wasn't being faithful (he probably wasn't). One day, wvhile K and the baby were out, my brother packed a bag and moved back home with my dad. He hasn't hardly seen the baby since. --- Now, fast forward a little over a year, my brother started dating a girl who is friends with all my friends (though I had never met her.) They moved pretty fast, and were living together within a month or so. Let's call the new girl P. So P and my brother were the super cheesy couple who posted about each other on Facebook 300 times a day. She was another sweetheart. She's a bit younger than my brother, so she was still in college at the time.My brother had a crappy job in the beginning of their relatioship. P's family has a lot of money, but P likely never even considered that my brother was using her. He got in good with her family, and was regularly accepting money and gifts from them. All the while, P was quickly falling in love. After a few months, my brother found himself with a much higher paying job. He realized that he no longer needed P and her family to buy his designer clothes. So he ghosted her. Like I mentioned, P is friends with several of my friends. I heard from my friends before I heard from my family. P was devastated. I asked one of our mutual friends for her phone number, and I called her. I told her that I was sorry that my beother hurt her, and that it was NOT her fault, that he had done this a thousand times. I told her that she deserves better than him. I told her that if she ever needs to talk about anything at all, that she can call or text me any time of day. She cried and cried and spilled her heart to me. By the end, we were both bawling. The next day, I called my brother. I told him that he needs to get his shit together and learn to respect people's feelings. He broke P's heart and he's broken several others. I really let him have it. He ended up hanging up on me and telling my dad that I was harassing him. Now my dad is angry at me, but I made a new friend and hopefully I helped her feel better. Part of me feels like it was none of my business and I shouldn't have called my brother, but the other part of me is disgusted by him and damn proud of myself. Was I wrong for getting invloved? I think that, as women, we really need to stand up for each other and build each other up. But I fear I took it a step too far.