I understand how you feel, Gigil. If you have bought your house with money you worked for, and your brother has spent his earnings on other things, it is very unfair to 'equalise' you in this way. My parents didn't do anything quite so blatant, but did help out my sister, who chose not to work after having her children, but didn't see me as 'needing' the money as I worked when mine were young, so didn't do the same for me.
They were right that I didn't 'need' it, but if my sister had felt that she and her family were in 'need', she could have gone to work, like I did. Buying her things that I had worked for, because she 'needed' them and I had them was hurtful, as it made a mockery of my going to work. Or so it felt, anyway.
Sibling rivalry is always tricky to unravel, but I think it was the implicit judgement of our respective life choices that hurt, and this is possibly what is hurting you, too? I still find it difficult when people see fit to decide what others 'need', as it is (beyond basic survival) a very subjective concept.
I keep my two equal, even as adults, and unless one needed to be bailed out of jail, or there were some other expensive but unplanned eventuality, I will continue to do so, and even if one is a billionaire when I die, they will get the same as the other in my will. I would hope that they would come to an arrangement with their sibling in that event, but that would be their own decision.