There have been a couple players here and there who you would say are probably around their best years, but by and large they seem to be picking up the end of career deadwood or some middling players who are probably not going on to achieve much more.
It doesn’t seem too different to what China were doing, albeit the sums of money are much larger, but I still can’t see this harming the PL in the long term.
The only way I think it would start doing any serious damage is if they somehow find a way to be admitted into the CL. At that point I think, not just the PL, but all the European clubs, would then have a big problem on their hands.
However, the question does remain, how much of a sustainable investment is this actually for SA? I know they have a lot of money, but even then these are huge sums of money being invested that are unlikely to derive any sort of return, so even if it is a vanity project, at some point they might consider it not worth it.