lower divisions should have different gold gain

It's like how little league baseball have a smaller size field than in the major leagues. the way I see it silver is like 8th to 10th grade, gold to plat like highschool to lower division college, diamond like division 1 college and masters is proleague.

silver is where the majority of players are and if it was like basketball or any number of sport, it would be a lot less fun to play if you had to try and dunk on a super high net that taller basketball players can reach easier. In that sense pro LOL player have near flawless CS and this makes reaching desired item thresholds before the game ends more doable.

Now, the amount could very well be quite small, if lower elo have more kills early game in general (would need data on this).

Games end at around 25 min pretty much regardless of what division you are in. according to : https://www.leagueofgraphs.com/rankings/game-durations Pairing game length with knowing what the average gold amounts are by division, we could gain some insights into how the game feels different for some and whether its less fun for some divisions than others. because at lower elos that moment when you reach mid to late item builds (like 3.5 or so items) could likely be farther into the game than what we see in competitive matches.

that said, it could also be that lower elo make up for less gold from farming by having more kills on scoreboard than there is in competitive. and so the gold is about the same.

if gold gain is less at lower elo, perhaps it would be better if gold per sec was different based on people's division.
this way Marksmen at lower elo would remain as viable as at higher elo if you rely on gold to reach late game (which is where Marksmen remain very strong). (not trying to buff adcs here either, so tweak as needed).

this is also not solely about Marksmen but also about reaching full items and having the fights feel like they evolve more/faster as the game progresses and people get more items.