Li Ka-Ching buying Inter would be a bad thing, look at the mess Chelsea got themselves into. Mancini would lose 1 match and he would probably get axed for an unknown Chinese manager. It would be a similar situation to the one at Hearts.
I think you're completely wrong.
Li Ka-Ching is a business man - in an oriental model. despite all my dislikes towards him with respect to corruption, etc, the FIRST thing he would do would be to hire a bunch of football-specialist advisors, and give over management of the club to them.
He would NOT, I repeat NOT take an Abrahimovic role.
Whilst, yes, pressure would be on the manager, his sole purpose would be to make money (or perhaps have a little bit of fun, as long as it isn't a huge money sink). The sum result? The club would be run football-specialists with good business sense, they would be able to request as much money towards signing players as they wanted, but it'd be compensated with some 'merchandising' signings, e.g. signing an Asian player or two to boost the market, I suppose the closest model we can have at the moment is Manchester United.
At the end of the day, as long as the money use wasn't ridiculous, and profit was maintained, he would run it 'well'.
However, I personally prefer a hands-on owner, e.g. Moratti, with close understanding of the fans, and importantly, a good link with the club's history.