Really? A +1 is that important at 7th level? Where did all the role-playing go?
Roleplaying?
Roleplaying exists in DND?
DND is and has historically been an explore, kill, loot game.
People throw a little roleplaying into that, but there are zero roleplaying rules in DND. A few roleplaying guidelines, sure. But, no roleplaying rules. As an example, there are XP rules for combat encounters and XP rules for noncombat encounters (only if a skill challenge is involved) and XP rules for quests, but no XP rules for roleplaying. The skill challenge system in the DMG is terrible and even it tries to distill roleplaying down to a set of dice rolls.
The vast majority of feats are combat feats.
The vast majority of powers are combat powers.
Roleplaying? Please.
Roleplaying in DND is the small amount of glue between encounters. It's the tool used to set the stage for the next set of combat adventures.
When 90+% of the rules are about combat, it's a combat game. Sure, a given group can say "Oh no, we roleplay a lot in our game". But, I seriously think that such people are overemphasizing their roleplaying to seem cool or some such and not actually sitting down and figuring out how much time the PCs explore, kill, and loot, and how much time they actually talk to NPCs or even in character to other PCs. And no, I do not consider making tactical decisions or using a thieving skill for a PC roleplaying. Some people consider that everything their PC does (like walking) is controlled by the player and hence is roleplaying. I don't. I consider roleplaying to be the communication aspects of the game between PCs and NPCs, or PCs and PCs, and the DM telling an interesting and involved story.
Bottom line, DND emphasizes rules and combat over storytelling, plot, and (non-statistics) character development unlike some other RPGs.
Go to YouTube. Watch the DND sessions that people have videoed. A very small percentage of the time is actually spent on roleplaying. As a DND gaming community, we have disillusioned ourselves into believing it isn't so, but it is. Or, secretly video your own sessions without telling the players and afterwards, see how much time was actually spent having the players (including the DM) act in character or the DM relate story elements (such as history or plot) beyond that of the description of the contents of a room.