https://www.fia.com/events/fia-formula-one-world-championship/season-2018/eventtiming-information-28
Race max speeds, Speed trap in Spa is top of the hill, s1 line is just before the braking zone end of straight and full 23kph faster than the fastest 'speed trap' number in the race. Hamilton was top of the speed trap yet 7th by the end of the straight. Ricciardo managed 4kph higher than Sainz at the end of the straight and he retired fairly early and likely had a fair amount of damage (though if it reduced downforce it may have actually reduced drag). Max was 9kph slower than Ricciardo at the end of the straight but only 3kph lower in the speed trap. Drag increases exponentially, not linearly, so lower drag makes little difference at lower speeds and an ever larger difference at higher speeds.
Bottas was highest speed with the end of the straight but he also had a lower downforce/drag setup than Hamilton and he was the fastest car with the latest drs overtake also against another fast car as in you get drs/slipstream combo for longer against Perez than you would Hartley/Vandoorne.
THe list out of context as you've tried to use it, it utterly meaningless, with context the results are easily explainable. Vettel had more engine power and ran a decently high downforce design and had the slowest speed of anyone at S1 and was only 10th in the speed trap. Ericsson was 4th in the speed trap despite being a generally slow driver.
You simply can't in any way go hey, look at the speed trap, this shows that Renault have more power than people say and Ferrari isn't the fastest engine, because is just doesn't in any way work like that.
Let's also not forget how easily Vettel breezed past Hamilton on the first lap.. yet is lowest in the listed speeds at the end of that straight. So Vettel was doing at most 320kph(the fastest he went there all race) in the first lap yet drivers were hitting up to 345kph later in the race. This is the major issue, cars are MUCH faster at the end of the race but most of the top drivers have settled for position and cruise the final 15 laps not pushing the engines at all hard and also not fighting anyone so no DRS + high engine power combinations.