i see what your saying, but with companies as big as Mclaren and Ferrari they could make a loss of millions per year and just have it out of their advertising buget, companies like this have unlimited pockets when it comes to keeping their brand in the public eye, i wouldnt be suprised if the big teams loose money
Teams are ultimately supported by advertising and manufactring. I don't know that the entertainment value is enough to support the teams at this level. that being said, they have to justify to the advertisers the cost to sponsor a team. Teams such as Toyota and BMW are evidence that even manufacture backed teams have to justify their value to the advertiser. BMW has chosen that the cost to comete at the top level does not provided the return they need as an advertiser, and as such have pulled the plug. Team budgets must be based on the revenues produced, they cannot over time continue to operate at a loss year after year. Some teams are backed by manufacturers or industry with very deep pockets, and as such may be able to provide in what seems an unlimited fashion, but ultimately that is not the case. As soon as the board of directors of the manufacturer or team sponsor or team owner sees that they are not getting an adequate return on their investment, they will pull the plug. You can see that teams without this major source of funds cannot compete. This year is a bit of an annomoly based on the rules changes that htrew everything up in the air, but you can guarantee the teams with the largest budgets will soon be at the front of the field again.
I guess my point is, economics say teams can't lose money forever, revenues have to come from somewhere to pay the bills. Some teams just have access to what seems like an unlimited source of funds by virtue of their relationship with a manufacturer, and when money runs short can just ask for more. Some teams don't have that resource and just have to make due with what revenue the team can produce in an open market. these teams tend to be at the back of the field due to their limite resources compared to the other teams.