These people were all people who sincerely admired the Godfather and wanted to follow him but didn't have an official organization, thus, becoming a shadow organization to follow behind their lone wolf leader.
If Ainsley could look outside, she would see several acquaintances, including the husband and wife pair who later on became the contracted spirits of Jake's grandma.
There were also the heads of many mafia families who came with their own people, wanting to contribute something to the big figure who made their mafia circle grow to this scale.
The Godfather never officially created his own mafia family, so he had no conflict of interest with these mafia bosses.
As the 'face' and the 'mascot' of the mafia circle, naturally, these mafia bosses would not let the world union kill this big figure easily.
If that happened, the mafia circle would get a heavy blow no matter what, and their influence would shrink to a certain extent!
