Notice Russell's quote -
"To claim that he gave "ransom for all," and yet to claim that only a mere handful of the ransomed ones will ever receive any benefit from it, is absurd; for it would imply either that God accepted the ransom-price and then unjustly refused to grant the release of the redeemed, or else that the Lord,after redeeming all, was either unable or unwilling to carry out the original benevolent design."
Now see the Current Teaching of the Ransom :
"Only Jehovah's Witnesses, those of the anointed remnant and the "great crowd," as a united organization under the protection of the Supreme Organizer,have any Scriptural hope of surviving the impending end of this doomed system dominated by Satan the Devil." Watchtower 1989 Sep 1 p.19
"Children are affected by the course of their parents, and parents are warned that their iniquity is visited on their offspring unto the third and fourth generation. (Ex. 20:5, 6) Parents are commanded to instruct their children in God's way, and if in these last days parents refuse to heed the divine instruction and warningthey bring destruction upon themselves and their small children at Armageddon. (Deut. 6:6, 7; Eph. 6:4) According to justice God can leave such children dead, for, as Ezekiel showed, all die in their iniquity."Watchtower 1950 Nov 15 p.463 Questions From Readers
"They must appreciate that identifying themselves with Jehovahs organization is essential to their salvation." Kingdom Ministry 1990 Nov p.1
"Yes, today, with Armageddon staring us in the face, we must keep in mind the sobering thought that millions, even billions, of lives may shortly come to a swift and decisive end, putting their onetime owners beyond the reach of any expression of love on our part." Watchtower 1965 Apr 1 p. 212
"Similarly, Jehovah is using only one organization today to accomplish his will. To receive everlasting life in the earthly Paradise we must identify that organization and serve God as part of it." Watchtower 1983 Feb 15 p.12
"There are billions of people who do not know Jehovah. Many of them in ignorance practice things that God's Word shows to be wicked. If they persist in this course, they will be among those who perish during the great tribulation." Watchtower 1993 Oct 1 p.19
"Yes, the destruction of the gross sinners in those cities was eternal, as will be the destruction of the wicked at the end of the present system of things."Watchtower 1990 Apr 15 p.20
"The majority of people living today will probably be alive when Armageddon breaks out, and there are no resurrection hopes for those that are destroyed then." Kingdom Ministry 1968 Mar p.4
"But Jehovah's servants already belong to the only organization that will survive the end of this wicked system of things." Watchtower 2007 Dec 15 p.14
"But if we were to draw away from Jehovah's organization, there would be no place else to go for salvation and true joy." Watchtower 1993 Sep 15 p.22
"Only Christian witnesses of Jehovah who successfully pass this test will survive and come forth like fire-refined gold for God's use in his precious new order." Watchtower 1985 Mar 1 p.14
Quotes Compiled by : http://www.jwfacts.com/watchtower/salvation-only-for-jehovahs-witnesses.php