I can hear what your saying, yet look at it this way, if you don't turn up, you would probly say that he couldn't even be bothered to turn up at the funeral and use it later.
Your in a no win situation when theres a funeral, dam if you do and dam if you don't.
He may of had his reasons why he hasn't bothered for years.
And is it not up to the individual who passed on whether to give them something or not.
He's your brother forgive him, after all you chose to do it all, he never asked you. You could of walked away also. Seems like your gutted for having to take on the responsibility.
In my culture people get together to offer to pay for the funeral and arrange it. Its a privelegde that you could do the right thing in the end.
It can't have been easy for him to turn up knowing he hadn't bothered and what type of reception he would get.