How was the story of Efron grabbing bag teh coins from Avraham but in reality he was damaging himself?

When Avraham Avinu came to buy the Me'arat HaMachpelah for Sarah Imeinu, he dealt with a rasha named Efron. At first, Efron made a big show in front of everyone, saying he would give the cave to Avraham for free. He said publicly, "I've given you the field, you don't have to pay anything." But this was all a trick to get kavod. Once he got everyone's respect for being so generous, he turned around privately and told Avraham, "What's 400 silver shekels between us?" This amount was worth millions of dollars in today's money - somewhere around 40 to 50 million dollars - for a piece of land that wasn't even worth a tenth of that. Efron wanted both the honor of looking generous and the money. He took advantage of Avraham at a difficult time, knowing Avraham was rich and needed to bury his wife. But Efron paid a heavy price for this. In the Torah itself, you see his punishment: his name is spelled with five letters at first - Ayin, Pei, Resh, Vav, Nun - but after he made this scam, he lost the letter Vav. From that point on, whenever he's mentioned, it's spelled with only four letters. Why? Because those four remaining letters have a numerical value of 400, just like the 400 shekels he overcharged Avraham. But here's the real damage Efron did to himself: instead of getting eternal recognition as a righteous, generous person - both in his community and in the Torah forever - he became known eternally as a liar and a cheat. The Midrash says he was over-eager for wealth and put an evil eye on the money of the tzaddik. He lost the greatest glory he could have ever gotten. 4,000 years later, the only thing that remains from that entire civilization is the Me'arat HaMachpelah and the story of how Efron cheated Avraham. His name is a symbol of someone who talks big but does little, someone who is spineless and has no word. This teaches us that when you chase money dishonestly, especially from a tzaddik, you destroy yourself. Efron thought he was being clever, but he signed his name forever as a rasha in the Torah itself. That's the real damage - he could have been glorified forever, but instead he's shamed forever.