Tell me about people who have no integrity since ancient times.

When the Qing army went south to Enemy at the Gates, Liu faced a critical situation, and advised Qian to end up with him. Money is afraid of suicide. Finally, he came down from the pool and tried to test the water, saying, "It's too cold to go down", while Liu was "struggling to sink into the pool" but was forcibly stopped by money.

And, of course, the modern Wang Jingwei. Needless to say, his deeds.