What does Dharma teach you? To be responsible FOR yourself, for your own actions, because there is a thing called karma. It teaches you to serve others tirelessly, to benefit others, to work harmoniously and with much integrity.
If you do not take responsibility for your work, you burden others in all ways possible and yourself eventually, because that habit will become more and more prevalent, and people would not tolerate it. As a Dharma practitioner, one should work towards taking the responsibility and burden from others, and the very reason why you do more work, take responsibility of your work, is so that others can do less. Buddha doesn't teach one to burden others, but to alleviate their burdens and sufferings. Therefore, if your actions are not aligned with that, how much Dharma is on practising?