How did I say they manipulate the system? I think they deal with individuals, and maybe make policies for their yeshivos in the best interest of their yeshivos, but I don’t think they manipulate the klal.
Manipulating for individuals (by making sure that there are girls for those many individuals to marry, or by maintaining the freezer for 1000+ bochrim) results in manipulating the Klal.
If anything, you are putting it way worse. At least I admit that the Gedolim and Roshei Yeshiva care about the Klal, albeit certain members of the Klal (learning boys) over others (understandably). Your argument is that they don’t pay attention to the Klal at all, but rather focus ONLY on the very small picture of individuals, and maybe expand it to their own yeshiva. Not the sort of people that you want leading Klal Yisroel.
To your first point, I already agreed that they “care”, but not enough to do anything about it.