That's how League 1 is still very uncompetitive because other teams may not be able to get quality players like PSG. Maybe one of the problems is the financial difference between PSG and other teams.
Of course, they lack strong players like PSG because they still lack sponsors, they lack money to get good and strong players in most lines like PSG has. If they get good and sustainable investors or sponsors, then yes of course they will choose top players again. It's just that there must be a return on this,
For now, the clubs that are on the rise are Marseille and Monaco, but unfortunately both clubs are still not that consistent. meaning they are still quite far from PSG when compared to their overall strength in standing.