City were the favourites to see off Sam Allardyce's side in Saturday's meeting at the City of Manchester Stadium, but the game did not go according to plan.
A mix-up between Joe Hart and Kolo Toure gifted Nikola Kalinic Rovers' opener and while Patrick Vieira equalised for City they were unable to find that all-important winner.
The point provided a much-needed boost for Blackburn and Samba believes that having team spirit is half the battle in winning matches rather than simply playing the game as individuals.
Samba insists that spirit is high in Rovers' camp and that the players' respect for each other means they will always fight for the cause.
"We know what is happening at Manchester City, with them spending big money and their massive wages," said Samba.
"But football is more than that. You have to believe and that's what we showed.
"Of course, it is normal that to attract the best players they have to pay the big wages. But team spirit is something you can't buy. We are a couple of years together now and showed how important desire and team spirit really are.
"Is our team spirit priceless? Yes definitely. We know the qualities we all have. We have respect from each other. It is no time for let-downs and small performances."