People think they will be able to use their light single and PPL for business/commuting, but in reality it doesn't happen much. It's not a case of the engine not starting, more like the weather is unsuitable. If you put yourself in the situation where you really need to get to a meeting and your plane cannot handle ice you are eventually going to kill yourself.
Some people do it, but they are the exception. If you need to reliably fly from A->B you should take an airline.