Maybe because unfortunately Finns tend to obey more easily than a lot of other Europeans. Maybe because this country didn't even exist as a country until a bit over a 100 years ago, but was basically an occupied nation, ruled over first by Swedes for hundreds of years, then for a century by Russians. Rebellions were tried and crushed, and there was not much chance to do much of anything but grumble but obey. I suppose it became part of the culture. After we kind of accidentally gained our independence when Russia was sort of occupied with its own troubles and Sweden had lost its ability to play empire people were perhaps willing to fight quite fiercely for that against outsiders for a while, but we still kept that habit of obeying, just now it was obeying our own rulers, maybe reinforced by those wars against outside threats (Russia - well, Soviet Union then) that happened soon after that independence was finally gotten because when there is an outside threat if you want to survive you can't really start fighting among yourselves.

So it was pretty easy for outsiders - the global version - to sneak in, all they needed to do was to slowly infiltrate into our politics, and Finns, who might have been able to fight if there had been a clear threat to us from the outside meekly folded under - and still do - when most of us thought it was all decided by our own who presumably knew what they were doing.

As some probably did, having been bribed by personal gains.