@TheDaBoss Some say "you make your luck".
I have a different idea - that in league you need to perform at a level that takes luck out of the equation. I.e. you don't "become lucky", you just nullify whatever luck the opposition has.
For example, Melbourne Storm 2019 are conceding an average 12.76 points per game. They are about 30 points ahead of Raiders and 30 again to the 3rd and 4th teams. Tigers managed to score 22 in Round 10, which is still the biggest tally conceded by Storm all season.
The Storm basically take luck out of the equation. If something lucky happens for the opposition, they defend it and the event becomes nullified.
It becomes irrelevant whether or not teams get "lucky bounce" or "rub of green" over a full season of football if you limit them to 2 converted tries per match - you are guaranteed finals football with that type of defensive record.