If it's anything like the states, the rankings will only matter when the elites say they do.

I remember one particularly sexist and racist NGO coworker who used to point to "merit" whenever possible to quash a CV who lost their shit and crashed out when I pointed out UT Austin had surpassed Georgetown in the rankings, so moving forward we'd be throwing Georgetown CVs in the trash like they'd insisted folks from Austin be done (but weirdly, only seemed to notice when the person was not rich and connected).

These are people who massage the statistics to favor themselves and when they cannot, give up all pretense.