I start from the premise that if McCabe was only interested in his own self-aggrandisement and making as much money for himself as possible, he would not have gone within a million miles of the financial black hole that SUFC has been for the last 40 years.
If that premise is accepted then, it follows that McCabe must have got involved with SUFC for other reasons. My view is that he did it for exactly the same reason as other very rich people who get involved with football clubs - a hobby that will bring them some prestige and a feeling of power and, in the case of someone like McCabe ("local boy made good"), putting something back in the community from whence he came. Of course, that hobby tends to be a rather expensive one and I am sure KM was well aware of this when he got involved.
There may come a stage when these plutocracts get bored of their hobby and may wish to get rid of their toy with as little financial loss to themselves as possible. KM may well have reached that stage now. However, all the evidence suggests that KM does retain an affection for SUFC (after all he could just close the club down tomorrow and sell off the land if he so chose) and that he genuinely does not want to damage the club long terrm.
All this is not to be a "supporter" of McCabe - his regime from 2007 has clearly been disastrous - merely to try to have some grasp of probability and likelihood - rather than a knee jerk "hate McCabe, love United" stance. It is also not incompatible with disapproving of the way he manages his tax affairs - whatever the correct technical term is.