Well, as they say, it also reflects the ever increasing power of players and agents vs. the clubs and we may benefit from it next time. If you look at players we got young on the cheap (OK, there is a considerable risk involved also), I'm not sure the status of the club or emotional attachment in the case of Elliott wasn't used by us in getting those deals. I'd say clubs will be paying even more money to agents who can keep someone available for you, with release clauses, specific clubs release clauses and through advising them what to sign.
And it is not like the wages and signing on bonuses are already not as important as transfer fees, in two years time, what we paid for Salah would be dwarfed by what we paid to Salah during his career here. We tend to see Chiesa deal as a little risk no-brainer but, comparing his fee (if we don't manage to recoup it) and wages to his contribution in his first season places that deal in a complete different light, at the moment.
It will hurt smaller clubs with business models relying on producing or uncovering gems elsewhere and selling them on, more than the big clubs.