aggression (= angry and threatening behaviour) that happens in order to achieve a particular aim, for example to steal something, rather than as a reaction to something that someone else does

Instrumental aggression is designed to help the individual maintain power or possession in a situation for their own gain. 工具性攻击旨在帮助个人在某种情况下维持自己的权力或占有。

Psychopathy is strongly associated with instrumental aggression. 变态心理与工具性攻击密切相关。