Last week, the triple world champion drove his $2m Pagani Zonda supercar into three stationary cars in Monaco, admitting heavy partying and fatigue contributed to the 3.30am crash.
A spokesman for a British road safety charity said: “Hamilton has a choice to make; party more or drive less.
“He can’t carry on doing both and expect to keep his road safety role.”
But although attending the Brazilian grand prix to mark world remembrance day for road crash victims, FIA president Jean Todt played down the controversy.
“Sometimes you spend time on unnecessary controversies, which have no meaning,” said the Frenchman.
“When I hear, for example, the importance that was given to Lewis having a little incident on the road, we should not care about that. We should care about important things,” added Todt. (GMM)