Blatant fraud is rare in physics, engineering, chemistry. Lying is rare. Quality is high at the highest institutions of physics and chemistry. Exaggerated claims occur, but much less than in day to day life. Top visibility work is quickly reproduced. Reproduction is the essence of science.
Did you google "fraud in physics" or "fraud in chemistry"? (I just did.)
> Exaggerated claims occur, but much less than in day to day life.
"Day-to-day life" does not lay the foundation for millions of dollars in followup research, or set the direction of a grad student's research, i.e. their career.
