One should not become neglectful to offer due respect to the demigods. One may not be a devotee of demigods, but that does not mean that he should be disrespectful to them. For example, a Vaisnava is not a devotee of Lord Siva or Lord Brahma, but he is duty-bound to offer all respects to such highly-positioned demigods. According to Vaisnava philosophy, one should offer respect even to an ant, so then what need is there to speak of such exalted persons as Lord Siva and Lord Brahma?
In the Padma Purana it is said, "Krsna, or Hari, is the master of all demigods, and therefore He is always worshipable. But this does not mean that one should not offer respect to the demigods."

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