High-minded formerly meant lifted up in a bad sense: proud, arrogant, haughty, or conceited. Although modern usage may give the word a favorable meaning, its biblical use warns against an inflated estimate of oneself.
Romans 11:20 commands, “Be not highminded, but fear.” First Timothy 6:17 warns the rich not to be high-minded, while related passages use the word for being puffed up or wrapped in conceit.