One of the effects of money in football has been the gap between the rich and the poor. As in society there is some evidence that the gap keeps increasing. Several factors including how TV rights money is distributed contributes to this gap.
Somewhat unrelated to the aforementioned gap is the gap between first and second placed teams. This gap contributes to the excitement in the latter weeks of the season. Below are some numbers for the past three seasons.
In England the 2018-2019 season was historic in that the top two were very close and accumulated plenty of points.