A truly compassionate attitude toward others does not change even if they behave negatively or hurt you.
The essence of Buddhism is if you can, help others. If not, then at least refrain from hurting others.
Our greatest duty and our main responsibility is to help others. But please, if you can't help them, would you please not hurt them.
There is a common perception that compassion is, if not actually an impediment, at least irrelevant to professional life. Personally, I would argue that not only is it relevant, but that when compassion is lacking, our activities are in danger of becoming destructive. This is because when we ignore the question of the impact our actions have on others' well-being, inevitably we end up hurting them.
To develop patience, you need someone who willfully hurts you. Such people give us real opportunities to practice tolerance. They test our inner strength in a way that even our guru cannot. Basically, patience protects us from being discouraged.