Sure, you can get your sequential decision making agents to maximize rewards but to make truly trustworthy agents - they need to be able to explain why they are performing the actions that they are.
References
2022
Inherently Explainable Reinforcement Learning in Natural Language
Xiangyu Peng, Mark O Riedl, and Prithviraj Ammanabrolu
In Thirty-sixth Conference on Neural Information Processing Systems (NeurIPS), Apr 2022