Rakesh has a huge complex against rich and successful people majorly beacuse he isn't one of them. Had Sameer not been rich a few things would not have happened. (This is not wrt Rakesh alone)
1. Rakesh wouldn't treat him with that much hatred.
2. Taiji, Tauji would not give him as much importance as he gets as Maheshwari's grandson.
3. Pooja's MIL would not have made him so important and thought him worthy enough to be a possible alliance for her daughter.
All in all all these above characters are either awed or threatened (in Rakesh's case) because of Sameer's being from a affluent family.
The only people who support Sameer without caring for his wealth are Mundit, Naina, Preeti.
Strictly my POV.