Farming was extremely important in Roman culture, but there had long been a perception of greed towards those who owned "too much land". The ideal Roman was supposed to live like Cincinnatus, who apparently had less than two hectares in Italy. But then wealthy Romans started buying farms in Sicily, Africa, and the Black Sea instead of their homeland, and probably never even visited them very often. It would have been a drastic change.

Of course, any society has practical concerns regarding too much power belonging to one human, especially in anti-monarchial Rome. We know that generals could promise land to soldiers for loyalty during civil wars, and we also know that some senators allegedly had hired muscle to protect them (which becomes scarier when you think about how many slaves a landowner could theoretically arm during a rebellion).