What an interesting political world we live in!
Tory MPs are told by David Cameron to take no notice of their constituency parties about Europe:
“Forty-four local party chiefs write to the Telegraph warning the Prime Minister he has no ‘divine right’ after EU referendum ‘snub'”
http://www.telegraph.co.uk/news/newstopics/eureferendum/12144564/EU-referendum-show-us-respect-local-Tory-party-chiefs-tell-David-Cameron.html
while Jeremy Corbyn does the exact opposite over Syria:
“When I was elected I said I wanted Labour to become a more inclusive and democratic party,” he adds. “So I am writing to consult you on what you think Britain should do. Should Parliament vote to authorise the bombing of Syria?”
http://labourlist.org/2015/11/corbyn-turns-to-labour-party-members-in-syria-dispute/
So, Tory constituency members are marginalised in favour of MPs personal views whereas Labour MPs are marginalised in favour of members’ views.
Don’t let anyone now tell you that a vote for a party MP is a vote for the party!