If we consider Jacques lucky because he had a dominant car what does that make Mansell (1992), Prost(1993), Schumacher(2004) or Vettel (2011)?
Putting Jacques Villeneuve in the same league as Mansell, Prost, Schumacher, Vettel is blasphemy. Sure they had dominant cars in the years you mentioned, but conveniently neglect the fact they also won in inferior machinery or against super competitive team mates in earlier seasons. Schumacher's '97 Ferrari was nowhere as fast as the Williams and yet he gave them a run for their points till he got DQ'ed. Mansell, Prost went head-to-head against Rosberg and Senna. The only two competitive team-mates Villenueve had to go up against were Button and Massa, who were pretty raw at that point and yet out drove him. In fact, the '96,'97 grids were laughable if you compare it with today's grid or the late 80s. Put Villenueve in any of those grids and he would've been completely destroyed.