That's pretty speculative. The truth is that we have no idea if the type of investment you name is even a possibility with the Prince. A top 5 prem push is a distant dream, not a specific promised goal under condition of implementing his personal rules.
'No-one's died have they?' is a line of logic which could be used to defend all manner of unspeakable actions, would you be willing to defend those as well?
What kind of human rights abuses would you be willing to tolerate for the money and how far could he go before you'd object? I'm genuinely curious. Is it ok if gays or women are banned from Bramall Lane at the whim of the prince? Neither of these would 'directly concern you', so no skin off of your nose? How much freedom to abuse human rights abuse does £50m get you, or £100m?
There is harm in it if you're a woman who happens to want to be treated equally to men.
Since you don't mind inequality i'd assume you wouldn't mind being treated more harshly because of your own particular gender or race or religious preference? Or is it just when others suffer from inequality that it's ok?
It is perfectly possible to run a successful football club without regressing to stone-age values, plenty of other clubs do it. I just don't buy into this idea that because someone has money you should acquiesce to their every demand.
If we want to keep the heart and soul of SUFC then we should aim to maintain the spirit and values that one commonly finds in Sheffield and Yorkshire, not Riyadh. If this is what success costs (and as i said above, it doesn't have to), then personally i'll pass until we can find another way, cheers.