Why just Tiger, well if you fall short of information about your beloved country, Bengal Tiger is the national animal of India, there was a great reason for saving tigers, you see if there were no Tigers then all kids would need remember new animal as a national animal.
You might not know, how much people would fight to decide new animal, the Indian political parties will fight and also demand "bandh" and "rasta roko" and people might be killed, in a way people could averse the probable political murders if they could have saved tigers.
Looks like this is a rambling but wait, Tigers used to do more then just save people's lives from policians, well they used to do that since a long time back, remember the food chain, and tiger used to top the chain (well, second only to men) , Tigers used to control the population of grazing animals and hence were saving trees, jungles and inturn saved us all.
Few in India realised back in early 70's the need to preserve tiger and started Project Tiger, as it was a some govt work and many Bengal tiger factfiles (some pages) were published yet no luck for tigers. on a funny note after so many years their website is still under construction, and tigers went down to brink of destruction each year.
A pvt - public partnership has started the campign to save tigers and hits the road with a mis-informed number of 1411 remaining tiger, a number that govt is now declining, it seems the political man is famous for back footing from his own words, as always great India Audience slept and clapped while the poachers did their cold blodded work - without any real resistance,