Salam Alaykoom:
Q 18: 1-2 Explains that The Book is Straight and Clear with out crookedness.
I say this to remind every that the "Scholars" of Islam are not a "Priesthood" as the other religions tend to put their own on the Pedestal, we are not supposed to. They are merely your Brothers in the Faith and Human. Even in various Hadith you will see where our Scholars had to go ask others to verify things, some of those others were not always fellow scholars.
Sometimes you actually do have to seek knowledge from the cradle to the grave...for yourself.
That said, "what your right hand possess" did mean slaves and captives of war. Do we still have those things now? We are not supposed to, but we quietly do in some countries.
They forgot that their "servants and slaves" under Islam are to be treated as you would yourself.
They eat like you, dress like you, are not over worked as you would not over work yourself, ect.
The Servants of the Hereafter (like scattered pearls) are just to let you know how beautiful they are, that is all.
The Prophet (saw) had eleven total wives as I remember. In the Qur'an (I do not remember the Ayat right off) it tells you that that was a thing for him, and you have what you are supposed to have (up to 4- if you can take care of that many properly).
Somethings are simply what they are....
salam alay koom