Negotiation is particularly life-changing, especially if you're early-in-career. It's also really high ROI as the cost is effectively just a couple emails and some potential awkwardness.
Negotiation doesn't hurt anyone within or outside the company - It's effectively a part of life when it comes to the hiring game.
What you negotiate for isn't connected to your costs: It's about getting what's fair given the market rate and your current leverage situation (i.e. do you have other offers).
Even if an offer is good given your personal situation, you should try negotiating, especially if it's below fair market rate for that level/company/geography and you have competing offers.
You can always do something with extra money!
If you need premier negotiation support, we're happy to help as a part of Taro Premium.