Systems and methods are provided for detecting and responding to cut in vehicles, and for navigating while taking into consideration an altruistic behavior parameter. In one implementation, a navigation system for a host vehicle may include a data interface and at least one processing device. The at least one processing device may be programmed to receive, via the data interface, a plurality of images from at least one image capture device associated with the host vehicle; identify, based on analysis of the plurality of images, at least one target vehicle in an environment of the host vehicle; determine, based on analysis of the plurality of images, one or more situational characteristics associated with the target vehicle; determine a current value associated with an altruistic behavior parameter; and determine based on the one or more situational characteristics associated with the target vehicle that no change in a navigation state of the host vehicle is required, but cause at least one navigational change in the host vehicle based on the current value associated with the altruistic behavior parameter and based on the one or more situational characteristics associated with the target vehicle.