In what respects? I can think of far more cases over the last century of the US lagging behind in reforms than taking the lead. In European politics, the US is more often channelled as the big regressive bogeyman (e.g. "we don't want US conditions, do we?") than somewhere to look to for reforms.
To the extent governments looks to the US, it is more often out of necessity due to the balance of power.
It's be fantastic if that changed and the US became a beacon of progress, but that will still take a lot.
In terms of surveillance, though, just getting the US pressure lifted would make local progress vastly easier.