Do you want to throw away your happiness and good feelings for others to get what you want?

[PCutter 127]

I've already been chewed out for screwing up something in my business. 

Maybe from this point on I'll be absolutely ruthless if it means never making mistakes ever again.

Will you do the same? Go trampling on others to justify attaining success?

[TBD 17,256]

Several time. But most of those time, these people I know would've done the same so-I have all the right to do it. 

[Dreambiscuit 10,168]

No I haven't done it and I wouldn't do it either. Other people can be jerks and there's no escaping that in life. But adopting a cutthroat attitude to counteract it isn't the best policy. Don't make yourself guilty of what others have done to you, or of what you perceive others might do to you under like circumstances. It's better to let the negativity stop with you and not pass it on. No one likes to swallow the abuse of others but someone has to be the last line of defense or else the whole world will keep following suit until there's no civility left.  

Rise above it and be the better for it, even if you think no one else appreciates it. Believe me, someone will.