AITAH for missing my brothers 18th birthday party because i was closing a deal that will change my life?

throwaway because my family is losing their minds right now. i (28m) have been working 16 hour days for months. i finally had a breakthrough with my business and the final meeting was scheduled for last saturday.
the problem? it was my brothers 18th birthday. my parents have been planning this "big milestone" party for a year. i told them weeks ago that if this deal moved, i couldn’t make it. they thought i was "bluffing" or just being a "cold robot."
the meeting ran late. i closed the deal. it’s a 6-figure pivot for my company. i showed up to the party 3 hours late just as people were leaving and my brother wouldn't even look at me. my mom started crying saying i "value money more than blood" and that i’m "corrupted by ambition."
here’s the thing: i’m literally doing this so i can provide for everyone later. i even offered to take my brother on a trip anywhere he wants as an apology and he told me to "fuck off with my dirty money." my friends say i’m a legend for closing the deal, but my parents are acting like i’m a sociopath. i was just being realistic about the opportunity cost. am i actually the jerk here?