The India-born Sauber principal said the predicament of Marussia and Caterham showed the need for cost-cutting measures.
The 29-year-old has a 17-point lead over his rival Nico Rosberg, with three races still remaining.
Escalating costs, unequal distribution of money made F1 unviable for smaller teams like Marussia, Caterham.
Follow the trail of the highest motorsport challenge and one of the toughest rallies in the world.
Caterham went into administration on Friday while Marussia are also struggling financially.
A team spokesman said on Wednesday that the 43-year-old had tendered his resignation way back in March.
Nico Hulkenberg returned to Force India at the start of 2014 after spending a year with Sauber.
Marussia said telemetry data from car showed Bianchi did slow in part of track where marshals were waving yellow flags.
Rank and file Mercedes team members are in line for average bonuses of 10,000 pounds ($15,963) each.
Bianchi senior said he still had hope he would be able to take his son home one day.
Ferrari’s Fernando Alonso gave a teasing hint about his Formula One future on Sunday.
Bianchi suffered severe head injuries after losing control on a wet track at Suzuka eight days ago.
Mercedes take first constructors’ title as Lewis Hamilton extends his lead with the win in Russia.
Hamilton took the flag 13.6 seconds ahead of Rosberg. Bottas was third in a Williams, 17.4 seconds back.
Hamilton earned his 7th pole this season by beating teammate Rosberg by two-tenths of a second in qualifying.
Lewis Hamilton continued his good run despite being driving on the brand new circuit of Sochi.
FIA on Saturday said that each and every life is important and they can't afford to put them in jeopardy.
In 2012, tests were carried out using a forward roll hoop after other experiments with a jet fighter-style canopy.
Hamilton was second in first practice behind teammate Rosberg but dominated afternoon run by a wide margin.
Inaugural Russian Grand Prix will be held in the backdrop of Jules Bianchi crash, political issues.
Massa described last weekend's tragic race, in which Jules Bianchi suffered life-threatening injuries, as worst of his life.
Formula One supremo Bernie Ecclestone has shrugged off the critics and President Vladimir Putin.
Bianchi aquaplaned off the wet track with his car hitting the rear of a tractor deployed to remove Sutil's car.
The 25-year-old Marussia driver suffered the life-threatening injury on Sunday when he aquaplaned off a wet track.
Jules Bianchi’s freak accident raises questions about the sport, but there are no easy answers.
Sky Sports reported from the Mie General hospital in Yokkaichi, that his family were expected to arrive shortly.
The race started behind the safety car as rain drenched the 5.8 km circuit but, conditions clearly too treacherous.
Hamilton takes big step towards world championship, but no champagne spray on podium, only silent prayers.
Marussia driver Jules Bianchi was taken to hospital following a crash during the race.
Rosberg finished second in a race that needed two starts behind the safety car and ended before the full distance.
Four-time world champion Sebastian Vettel will drive for the Ferrari from next season, a statement by Red Bull said.
Rosberg lapped the 5.8 km Suzuka Circuit in one minute 32.506 seconds to claim his first pole since the Belgian GP.
Red Bull said in a statement Vettel's seat would be taken by 20-year-old Russian driver Daniil Kvyat.
Max Verstappen became the youngest driver to take part in a Grand Prix weekend and will debut next season.
Championship leader Hamilton, winner of the last two races, set the pace in a crash-interrupted second session.
The Briton's time of one minute 35.078 seconds was more than two-tenths of a second quicker than Rosberg's best.