The effect of Saudi teams in the market was not something small, they spend huge amounts of money to hire the players they want, and since many other teams and players are not expecting to see this amount of money they ask for higher offers and this changed the market situation, which is hard for many other teams with a bad financial situation.
I think the effects of the Saudi teams are not that bad as being portrayed by the media; this is something that happens in every transfer window. At some point it was PSG buying every best gems in Europe to France, at some point it was Real Madrid splashing the cash to get Galaticos, Even Manchester City had their fair share; splashing lots of money on players in the market transfer, and Barcelona is not left out too. Now it is time to the Saudi league to flex the wealth of their football team, get the necessary viewers and fame too.