<human>: Could you distill the essence of the text into 1-3 sentences?

The other day my boyfriend's brother said to me, "I want to marry a rich cougar so she can buy me stuff. All I want out of life is a sweet lamborghini.

Today I was telling my boyfriend about this conversation and we got in a fight over it because I said I felt bad for someone who had that as his life goal. My boyfriend said, "you think you're so much better than them because you have a career where you help people?" (I'm a social worker). He then went on to say, "you're putting yourself up here, and him down there." 

I disagree with him. I feel bad for a lot of people for a number of reasons. Not because I'm any better than them. I have sympathy for someone like his brother whose main life goal is a sweet car because it's not something you can take with you after you die. And I have a sad image of him as an old man and realizing his priorities were all off. 

Also relevant is that about four months after my boyfriend and I started dating, his brother tried to force himself on me. My boyfriend forgave his brother rather quickly, and even though I will occasionally be around his brother, I still haven't forgiven him. So I told my boyfriend I feel like he's constantly taking his brother's side. He replied, "well, he's my brother". We have talked about marriage, so I replied, "you know, eventually you're going to have to put me above him, right?" and then he said he had to go to work and slammed the door and left.

Was what I said out of line? I feel like this blew up out of proportion so badly and I don't know how to fix it. I'm still pretty angry.
<bot>: boyfriend's brother only wants a nice car out of life, I said I felt bad for someone with that as their priority, boyfriend got pissed.