"In the material world, therefore, everyone is engaged in acquiring material opulence to lord it over the material world. Therefore there is always clash and frustration, which are the symptoms of nescience." SB 2.6.21 purport
The striking example of Kamsa and Vasudeva. Kamsa the epitome of "lording it over" was about to run his sister through with a sword to insure his continued supremacy. Vasudeva promised to deliver any children born of Devaki to Kamsa for him to kill if he thought it was necessary. Srila Prabhupada explains that a materialist like Kamsa is capable of doing any hideous thing and a devotee of the Lord is capable of tolerating it [without clash or frustration] by always taking shelter of Krishna consciousness in all circumstances.