Why do Jewish funerals prioritize official mourners so much?

I went to a Jewish funeral and found their traditions just plan inconsiderate to anyone who isn't an offical mourner. All the mourners are the for the deceased and yet they put the offical mourners on a pedestal and that doesn't seem fair or right to me. I didn't disrespect the family or their traditions.

This is me venting.

Offical mourners: spouse, parents, kids and siblings

Offical mourners wear black ribbons that they rip and have to wear them for seven days and only they wear these ribbons

Only the offical mourners can see the deceased and for everyone else its a close casket. They see it as respect towards the dead because the body is private.

During the prayer section of the funeral and the wake so to speak they sit on lower chair than everyone else and say things about deceased.

I wanted to talk about what I saw at the funeral and how unfair I thought it was to everyone else there. I mean no disrespect

Updates
3 mo
I am not answering such disrespectful answers.

I am the daughter in law and it was my spouses parent. I didn't like things to be unfair for my own parents funeral. I am apart of their family and saw many of their family upset over their loved ones death so in my mind the entire thing seems unfair. I followed their traditions despite my feelings so I wasn't disrespectful.
Why do Jewish funerals prioritize official mourners so much?
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