That would depend on how old the server is. I'm assuming the server I'm on is pretty old. I have a friend currently at level 6, and the players in his league are inactive. My main account and three side accounts took top 4 in the league last season by a wide margin. With the level of inactivity in my server, I expect to take 1-4th place every season for the next 3 seasons or more. Personally, it doesn't bother me because it allows me to focus 100% on cup and CL and I don't need to waste boosters preparing for league matches.