That would depend on either the stop (risk:reward) of the trade and/or the win:lose ratio of your strategy.
There are some very profitable scalpers who target less than 10 pips but they also have a comparable stop, and/or their win:lose is good.
If you're already in a trade and the market proves your analysis is no longer 'correct', and therefore there's no reason to stay in the trade, then even a 1 pip profit is better than a loss.
Mainstream marketmakers rarely manipulate price or run stops just to get your money, it's a well-worn conspiracy theory