Firstly, generals, like anybody else can be terrorized.
Secondly, even if you only kill generals, that doesn't mean you didn't cause terror for everybody else. Imagine for example that Hezbollah found a way to poison the food for Israel's top X military personnel. It would cause a state of emotional terror for many people in Israel about their food safety for decades most likely, even if they weren't in the military themselves.
Firstly, generals, like anybody else can be terrorized.
Secondly, even if you only kill generals, that doesn't mean you didn't cause terror for everybody else. Imagine for example that Hezbollah found a way to poison the food for Israel's top X military personnel. It would cause a state of emotional terror for many people in Israel about their food safety for decades most likely, even if they weren't in the military themselves.