Good intentions are not rewarded; kindness goes unappreciated or is misunderstood, leading to a negative outcome or no positive result.
他帮同事加班完成项目，结果反而被指责多管闲事，真是好心不得好报啊
He helped his colleague work overtime to finish the project, but was instead accused of meddling; it really was a case of good intentions not being rewarded.
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