Hello, I'm having a hard time understanding the different meanings between the two expressions"It's not my place" vs. "I'm in no position." For example, here are the two sentences from American TV show "Mistresses": 1."It's not my place to grieve." - this is said by a woman who was having an affair with a married guy, and when the guy died. I wonder if it would mean the same if the sentence was:"I'm in no position to grieve."? 2."It wasn't my place to interfere with his legacy." - this is said by the same woman in the same situation as above. I wonder if it would mean the same if the sentence was:"I was in no position to interfere with his legacy."? Thanks.