For all of my grand deeds in this game, it seems kind of strange that they have little effect. I would propose that a Reputation Counter gets re-implemented into the game from Oblivion/Morrowind. The idea would be that specific radiant and non-radiant quests confer a level of reputation on the player, while several player actions and player quests lower it.

The quests for the Companions and Main Quest spring to mind as quests that would give your player some reputation gains. Slaying Mirmulnir, Reforging Wuuthrad, and even slaying Alduin the World-Eater would confer reputation bonuses. As well as these, the radiant jarl bounty quests would confer staggered bonuses, a small amount for the killing of a Bandit Leader, more for a giant, and even more for a Dragon, something like 10, 30 then 70 for the Dragon.

Murdering Civilians, Guards, getting caught stealing, performing the Thieve's Guild/Dark Brotherhood quests would lower your reputation.

There are pieces that go with each side of reputation though. A High reputation allows you to negotiate pays in Jarl Bounty quests(does the slayer of Alduin work for 500 gold?), lowers prices on goods and raise selling prices, as well as giving general title and respect to you. As in, people give you the common "It's a fine day with you around" or other niceties.

On the other hand, you will get challenged from Radiant warriors/Adventurers looking to prove something. Between 100-500, you will get challenged by leveled Adventurers. You can negotiate with them(with the chance to tell them that they will get challenged and might lose their life like yours) or intimidate them with speech. The player is also given a hidden dialog depending on if they have Dragon Shouts unlocked. a Swift FUS might scare off any challengers. Killing an Adventurer in honorable combat confers a bonus to your reputation, and might attract more than 1 Adventurer during a challenge. Murdering an adventurer not only confers bounties but also lowers your reputation quite a lot.

Low reputations obviously heighten prices in stores, but also increase bounty prices on things. Jarl Bounty quests obviously will reward less to scoundrels(but it might not be why you take those quests). People in Legitimate areas will begin to hate you, but then comes the big twist. between -50 to -100, Bandits will not attack you, but will not interact with you much. killings of a group of bandits will only cause hostility in that one group however. but from -150 onward, each bandit will speak with you, and can be traded with, though each bandit group shares one merchant chest that contains a mix of items, sort of a general store set. This will obviously apply to Forsworn, including Hagravens. Obviously low reputations benefit in the presence of the Dark Brotherhood and the Thieve's Guild, giving better prices as well as more money for Radiant quests.

The idea and main point of this mod is to allow players to at least partially get closer to working from the...other side of the law. We can join a band of thieves, and/or a group of religiously(and monetarily)motivated Assassins. But every other bandit group is hostile, not even frightened at a man who may or may not have assassinated some of the most important people in the Empire. Eventually, I would imagine that this mod would work in conjunction with a mod that removes many/if not all of the essential tags on characters, with scripting that will make players fail respective quests pertaining to the people I've killed so that I can work more on the darker side of the law. Outlaw, mind you.