The information that I have about Jimmy Hoffa has come (the impetus,I must say honestly, came from Scorsese's The Irishman) from here.
Jimmy Hoffa was a man with wealth and political connections and his work in Detroit attracted Mafias, well it was Hoffa's need too to join hands with Mafias. But as it comes to that wealth of Hoffa controlled the Mafias it seems a little counter-logical with the other facts, like Lucky Luciano's idea of forming The Commission was a solely for earning money with the help of gun, the setting up of numerous Casinos by Bugsy Siegel and all the investments of Meyer Lansky were the great sources of money, so why Mafias went on respecting Hoffa? I have found this As Attorney General from 1961, Kennedy pursued the strongest attack on organized crime the country had ever seen, and he carried on with a so-called "Get Hoffa" squad of prosecutors and investigators on wikipedia in the section Criminal Charges first paragraph, last two lines. I need a explanation for this, I mean how attack on Hoffa made the Mafia so vulnerable?
Jimmy Hoffa was a man who could control the mobs, could order them to kill anyone (someone not protected by the Mafias, for example Anthony Provenzano, also known as Tony Pro, a capo for the Genovese crime family), it is even suspected that he had his hands in the assassination of President Kennedy , why would mobsters follow his orders to go for President only for money (and even they didn't have lack of it)? He used to threaten the Mafias and they were afraid of him for too long, he kept them, paid them and made them to do what he wanted just by paying them the money from his Detroit business and sometimes using his political connections to protect them.
So, finally let me restate my question clearly Why did the Mafias respect Jimmy Hoffa too much when respect is the thing that they wanted all their life? This question is equivalent to What was the relationship between Jimmy Hoffa and the Mafias? or it is even equivalent to What was the relationship between the Mafias and the businessmen?
If the reason is just the money then I request you to please cite some other histories where something like this happened.
EDIT: In the book I Heard You Paint Houses Brandt's wrote “was that if something happened to Bobby, Jack would unleash the dogs. But if something happened to Jack, Vice President Lyndon Johnson would become the president, and it was no secret that Lyndon hated Bobby. Lyndon, it was agreed, definitely would get rid of Bobby as attorney general... Jimmy Hoffa said, ‘Damn right he would. He hates him as much as I do.”. Doesn't it tell us something?